How well do you see colours? It's probably not a question you often ask yourself.
After all, most of us have no idea how we "should" see the world so we just go about our daily business.
One quiz, based on the Farnsworth-Munsell 100 HueColor vision test, is promising to tell you if you have "super-human" eyesight simply by recognising which square is darker.
The quiz, created by Sydnie Silver on the site Playbuzz, claims that 'only people with superior vision' pass it.
It might also tell you a little bit about your imagination.
Have a go and see how well you measure up. Don't forget to share your score so we know how you got on.
If you get most of them right, the test will tell you you have "super-human eyesight", which might be a bit of an exaggeration.
playbuzz
Do you have superior colour vision?
The quiz is based on the Farnsworth-Munsell 100 hue test, which is one of the most famous color vision tests available and was created in 1949.
It never rains, it pours, and on the day Donald Trump became President-elect of the United States of America, Toblerone changed forever.
The makers of the Swiss chocolate altered the spacing between the peaks. Together, we mourned. It was a tragic time.
But we should never take such a thing lying down, and alongside finding excellent new uses for the Christmas confectionery, we've also had a little go making Toblerone ourselves.
Our man Aodhan Gregory spent some time in his kitchen crafting his own version. He used much the same recipe – just a little simplified.
Aodhan Gregory/Daily Mirror
Peaks of joy
All you need is a bar of good milk chocolate, a stick of nougat, and a handful of almonds. You can make your own moulds out of an old cereal box.
The result may not look precisely like the original, but it tastes delicious, and would, we think, definitely go down a treat were you to present it to family this festive season. Taste is preferable to appearance.
Aodhan Gregory/Daily Mirror
Toblerone chocolate is loved for its nutty, chewy loveliness
There's also the added benefit of costing by weight less than a bar of Toblerone. Let's not forget that Mondalez said that it reduced the mass of its bars due to rising food prices.
All it takes is a little time and effort!
If you give our homemade Toblerone a whirl, send us some photos of the finished result to yourmirror@trinitymirror.com
This terrifying ten-fingered robot can be controlled using sense of touch by an operator wearing an exoskeleton thousands of miles away.
A person wearing CAPIO moves their arm and the robot moves its arm in time with digital feedback so users get a sense of what it is touching.
The robot, called AILA, was designed by the German Research Centre for Artificial Intelligence or DFKI.
DFKI reportedly focuses on building robots for exploration and human assistance instead of military applications, Motherboard reports.
The robot is being used by the firm to demonstrate's CAPIO's capabilities.
Motherboard.vice
The incredible exoskeleton system uses 8 different contact points to manipulate the robot, so when the person wearing it moves their arm the driod moves its arm at the same time.
But most amazingly the exoskeleton feature something called 'haptic feedback' which allows the operator to feel their way around using a sense of.
The robot rolls around on six wheels, manipulating the world around it with two five fingered arms.
The system can be used at an incredible distance after the robot was operated in one test in the German city of Bremen using an exoskeleton in the Russian city Magnitogorsk.
That’s a distance of more than 2,400 miles. There is speculation the technology could be used for maintenance on the International Space Station.
Nostradamus was a French apothecary and seer whose prophecies have become legendary
Add this to the pile of conspiracy theories surrounding the US presidential election : Nostradamus predicted Donald Trump's shock victory - but with a chilling consequence.
Conspiracy theorists claim the 16th century prophet saw it coming - something the pollsters failed to do - and predicted the election result would lead to the end of the world through a catastrophic war.
They're quoting two different predictions which refer to a "great shameless, audacious brawler" taking control of the army and a breakout of "nuclear combat".
Trump, the Republican candidate, will be inaugurated as the 45th president of the US on January 20 after upsetting Democratic candidate Hillary Clinton in Tuesday night's historic vote .
President-elect Donald Trump was victorious over Hillary Clinton
Getty Images North America
Republican presidential candidate Donald Trump sits with his wife Melania Trump
Nostradamus was a French apothecary and seer whose prophecies have become legendary.
In one of his prophecies he wrote: "The great shameless, audacious bawler. He will be elected governor of the army: The boldness of his contention. The bridge broken, the city faint from fear.”
Conspiracy theorists say Trump - the brash candidate who was accused of racism, sexism, xenophobia, Islamophobia and sexual assault during the campaign - is the "brawler" in Nostradamus' prediction.
They've also quoted a separate prediction, which suggests there will be another world war.
The prediction states: "The moment of great violence will coincide with the appearance of a comet in the sky.
"Nuclear combat and natural disasters shall strike our planet when a giant planet approaches Earth."
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US Democratic presidential candidate Hillary Clinton makes a concession speech
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U.S. President Barack Obama (R) greets President-elect Donald Trump in the White House
Trotter's Traders celebrates the hit TV series Only Fools and Horses
People called Derek or Rodney who are hunting for a job may be in luck.
They've been encouraged to apply for work at a new £1.1m Trotter's Traders store because they share the same names as the main characters from Only Fools and Horses .
The discount shop is expanding its portfolio of stores which pay tribute to the iconic TV comedy series, which aired for more than 20 years.
Everyone is welcome to apply for a job at the store, but those called Derek or Rodney have been encouraged to submit a CV, the Grimsby Telegraph reports.
Northcliffe Media Ltd
Dave Potts said the new store is looking for a Del Boy lookalike
The BBC series set in Peckham, south London, focused on the lives of market trader Derek "Del Boy" Trotter and his brother, Rodney.
Former Grimsby market trader Douglas Wadham, a huge fan of Only Fools and Horses, established Trotter's Traders in 2008.
Trotter's Traders currently employs 25 people at stores in Humberston, Louth, Mablethorpe and Skegness.
BBC
Only Fools and Horses starred Nicholas Lyndhurst as Rodney Trotter and David Jason as Derek 'Del Boy' Trotter
Now around 20 new jobs are to be created with the opening of a new branch in Scunthorpe.
Mr Wadham says he is the number one fan of Only Fools and Horses, naming his business in tribute to his heroes.
Trotter's Traders area manager Dave Potts said: "We are aiming for opening in the first week of December and want to turn it into a real Peckham-style knees-up.
"We are also looking for a Del Boy lookalike if there is one in Scunthorpe."
Mr Potts said the new store would stock more than 12,000 different lines including tools and pet supplies and would trade seven days a week, including two late night openings until 8pm.
Cadbury produces many of our most treasured treats
Cadbury just registered the name 'Dark Milk'. It's a strange-sounding name, but a name nonetheless.
It's thought that the chocolate manufacturer is looking to protect its brand in Europe following the Brexit vote.
The problem lies with vegetable fat, which is found in famous Dairy Milk bars here in Britain. But the addition of the fat to chocolate has historically gone against against EU rules and regulations.
There's speculation that when the UK actually leaves the EU, European nations will block Cadbury from exporting its chocolate by redefining what chocolate technically is.
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Cadbury chocolate could be taking a dark turn
The likes of Italy, France, and Belgium, believe that chocolate should be purer. Many on the continent aren't really fans of Dairy Milk bars, which have a relatively low cocoa content. Britain was only allowed to sell its chocolate in Europe after a 30-year battle with the EU.
Nick Clegg, former deputy Prime Minister and Lib Dem leader, said last week that Brexit could mean the previous deal could be abolished.
So to counteract this possibility, it looks as though Cadbury has registered 'Dark Milk' in readiness to produce its classic bars with a higher cacao content for the continental market.
Recipes for many manufacturers, not just Cadbury, would have to change to suit EU taste buds.
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Classic Dairy Milk might be blocked by the EU post-Article 50
Cadbury owner Mondalez refused to explain its 'Dark Milk' registration when asked by The Grocer magazine, which pondered the idea that 'Mondelez will use its Dairy Milk brand to tap artisanal trend for darker chocolate bars' this month.
"Chocolate containing higher levels of vegetable fat and milk were only permitted in Europe following 30 years of wrangling amid arguments from bureaucrats that they should be called 'chocolate subsitutes'," The Grocer reported from Clegg's warnings."
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"Cadbury-style milk chocolate may once again face such prohibition claimed the former deputy PM."
It's a tiresome scenario played out in the work places the world over: You spend ALL day looking forward to lunch, only find some sneaky thief has scoffed your food.
If it's not your milk being pinched , it's someone deciding to make off with a crucial component of your meal.
What makes this situation particularly painful is if you're bringing in your lunch, you're either on an economy drive or pressed for time. Sometimes, both.
So it makes the thievery all the more painful, all the more injust.
Wayne knows knows your pain.
Because not only was Wayne the victim of theft, but he had his nose rubbed in it.
Wayne had his ham stolen
And like a lot of people, Wayne wanted the thief to feel bad.
His delicate and ever-so-slightly passive aggressive note - which was posted on Reddit by one of his colleagues - reads:
"To whoever ate the ham out of the fridge yesterday, please leave a note letting me know how it was. Thx, Wayne."
But whoever enjoyed Wayne's ham not only felt zero remorse, they also decided showed a lack of appreciation for the ham Wayne had bought with his hard-earned money.
"Little salty, 6/10."
It's one thing stealing a man's ham, it's quite another lording it over them in this manner.
A 13-year-old schoolboy who lived most of his life with his head hanging to one side has died just months after life-changing surgery to cure the rare condition.
Mahendra Ahirwar suffered from congenital myopathy, which made the muscles in his neck so weak his head hung at an almost 180-degree angle.
In February the teenager received pioneering surgery to straighten his neck following an international fund-raising campaign.
The operation appeared to have been a success.
Cover Asia Press/Faisal Magray
Mahendra Ahirwar, 13, recovering after undergoing life-changing surgery to straighten his neck
But this week the teen's family announced Mahendra had died suddenly while watching television over the weekend.
Dr Rajagopalan Krishnan, a former NHS doctor who completed the surgery to straighten the teenager's neck, said he was left shocked by his sudden death.
He said: "I can only conjecture that a massive cardiac or pulmonary event might have occurred and often there are no premonitory symptoms in such cases.
"I think myopathy and poor chest muscles caught up with him in the end."
Cover Asia Press/Faisal Magray
Mahendra Ahirwar before the operation
"He was among the bravest children I’ve seen since my return to India and I see the most terrible and neglected deformities," he continued.
"For me the joy and smile on his face when his head stopped sagging was one of the defining moments in my decision to operate on children with neglected and awful spinal disorders.
"I am sure his absence will cause anguish to everyone who was involved in his care, his smile was brighter than the sun after his neck was straightened."
Speaking today from their home in Madhya Pradesh, India, Mahendra’s father Mukesh Ahirwar, 42, and his mother Sumitra spoke of the devastation at their son's death.
Cover Asia Press/Faisal Magray
The teen died suddenly while watching television over the weekend
Sumitra, 36, said: "I had so many plans and dreams for him. I wanted him to grow big. He dreamt of opening a general store and we were going to help him. His dreams are shattered now.
"He’d been playing in the morning. Had breakfast, took a shower and took a ride on his wheelchair inside the house. A
"fter having lunch, he asked to watch TV. I switched on his cartoon, and he coughed twice. He asked me to rub his chest and then tried a third cough but died.
"I started crying loudly and called his name. I ran outside, I kept shouting my son isn’t moving, and a neighbour phoned the doctor.
"The doctor came within 15 minutes and declared he was dead. I fell to the floor and held him tightly. I didn’t want to let him go.’
The family cremated Mahendra in a traditional Hindu ceremony surrounded by 25 friends and family at 9am on Sunday morning.
Cover Asia Press/Faisal Magray
Mahendra Ahirwar before the operation
Sumitra, who has two other sons Lalit, 17, and Surendra, 11, as well as daughter Manisha, 14, added: "His things are scattered everywhere. Our house is filled with his belongings.
"Nobody thought this day would come. He was fine. He even said: ‘I’m absolutely fine Mum’. His voice echoes in my ear. The way he used to call me. I am devastated. I feel everything is over."
Mahendra hit the headlines with his extraordinary condition last year.
His story touched the heart of mother of two Julie Jones, from Liverpool, who went on to raise £12,000 for Mahendra to have life changing surgery.
A documentary, The Boy Who Sees Upside Down, was aired on Channel 5 Extraordinary People series in May this year.
It followed Mahendra’s remarkable journey, seeing him endure a ten-hour operation to remove disks from his neck and replace them with bone graft from his pelvis, before a metal plate was fitted in his neck to secure it straight.
Dr Krishnan, from Apollo Hospital, in Delhi, who had worked for the NHS for 15 years before returning to India to help extreme spinal disorders, was amazed by Mahendra’s speedy recovery and had been overjoyed at the way his neck had healed.
Cover Asia Press/Faisal Magray
Mahendra Ahirwar was able to attend school following his operation
He insisted that his death was not related to his recent operation, adding: "Mahendra's death is not a complication of the surgery or any other intervention.
"If that was the case, he would have died on the operating table or in ICU, not eight months later.
"I think his lifespan was limited irrespective of anything else but at least he had several months of being able to see upright.
"The most common cause of death in congenital myopathy is from cardiopulmonary complications.
"There are so many types of congenital myopathy and many subtypes that it's impossible to identify which one Mahendra had and the prognosis in terms of life expectancy.
"I still can’t believe he is gone and I will miss him greatly.’
Cover Asia Press/Faisal Magray
Dr Rajagopalan Krishnan with Mahendra after surgery at Apollo Hospital in New Delhi, India
Sumitra said: ‘My little son had the privilege of meeting foreigners and good people. He was treated by the biggest doctors in this country.
"For him, seeing a different city was like seeing a different world. He used to get so excited to see big cars.
"All the presents he received were always on his bed. He was playing with his car until his last day, he was very possessive with it.
"Dr Krishnan gave him a new life. He gave my son a new vision, a new way to see the world.
"But in the end it was for a very short time. He enjoyed his new life for just eight months. I wish he could have lived longer to see more.
"I will miss him. I’ve no idea how I’ll cope with the loss. He’s with God now. I hope he is able to find peace.
"He’s had a painful life. I hope wherever he is, he is pain free."
Have you ever wondered why air stewards and stewardesses are always so slender?
Take a few budget airlines out of the equation and the world of air travel remains a world of elegance and sophistication.
We're not saying there's anything wrong with budget airlines, by the way. It's just that higher-end companies still – sort of – operate as you see in the movies.
As well as the fact they smile and hand out free wine, something that cannot be ignored is that flight attendants are often a good-looking, slender bunch.
One of the reasons for this is because, according to Beth Windsor, who's working for four of the world's best-known airlines (including British Airways), flight attendants aren't allowed to gain weight.
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Flight attendants aren't allowed to put on weight, it seems
Writing in The Telegraph, Beth reveals a few secrets. The Mile High Club is a bit of a myth, for example.
But never mind sex at altitude. Probably the standout point is the issue of uniform. They're only issued one – it's a case of aesthetics and practicality. Airlines want and apparently need their staff to stay in shape.
"Once you’re issued with a uniform, that’s it - you can’t change it for a size bigger if you find you’ve put on a few pounds," says Beth.
"The airline will give you one month to lose the weight - otherwise you will be put on a weight management programme."
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It's true. Many airlines require staff to be "in proportion to height." They use Body Mass Index (BMI) to measure and keep track of their employees' wight and (we imagine) appearance.
Czech Airlines is one of the companies that does this.
“BMI is used to calculate weight – one’s body weight in kilograms is divided by the square of one’s body height in metres," the airline says.
"BMI = body weight (kg) divided by square of height (m). A BMI = 19-24.9 is considered satisfactory."
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A flight attendant's meal may be a lot healthier than yours
Air India does it too. Last year it warned 600 of its total 3,500 crew to lose weight within half a year. If they didn't comply, they risked being taken off flights.
The airline even once announced that it planned to remove around 130 flight attendants from their cabin crew duties due to their high BMI.
The NHS states a healthy BMI is between 18.5 and 24.9. However, with airlines, this is often more restrictive, topping out at 22.
