IQ tests offer a formula that allows you to compare yourself to other people and see how average (or above average) your intelligence is. The Cognitive Reflection Test (CRT) is dubbed the world’s shortest IQ test because it consists of just three questions. It assesses your ability to identify that a simple problem can actually be harder than it first appears. The quicker you do this, the more intelligent you appear to be. Here are the three questions: 1. A bat and a ball cost £1.10 in total. The bat costs £1.00 more than the ball. How much does the ball cost? 2. If it takes five machines five minutes to make five widgets, how long would it take 100 machines to make 100 widgets? 3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake? Sign up to our free Indy100 weekly newsletter Here is what a lot of people guess: 1. 10 pence 2. 100 minutes 3. 24 days These answers would be wrong. When you're ready, scroll down for the correct answers, and how you get to them: 1. The ball would actually cost 5 pence or 0.05 pounds If the ball costs X, and the bat costs £1 more, then it will be: X+£1 Therefore Bat+ball=X + (X+1) =1.1 Thus 2X+1=1.1, and 2X=0.1 X= 0.05 2. It would take 5 minutes to make 100 widgets. Five machines can make five widgets in five minutes; therefore one machine will make one widget in five minutes too. Therefore if we have 100 machines all making widgets, they can make 100 widgets in five minutes. 3. It would take 47 days for the patch to cover half of the lake If the patch doubles in size each day going forward, it would halve in size going backwards. So on day 47, the lake is half full. In a survey of almost 3,500 people, 33 per cent got all three wrong, and 83 per cent missed at least one. While this IQ test has its shortcomings – its brevity, and lack of variation in verbal and non-verbal reasoning - only 48 per cent of MIT students sampled were able to answer all three correctly. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

SARASOTA, Fla.--(BUSINESS WIRE)--Sep 18, 2023--

Greta Gerwig detailed how passersby would high-five Ryan Gosling and praise his Ken appearance without saying anything to Margot Robbie on the film's set

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The Apex Legends Fuse Heirloom is an electric guitar called The Razor's Edge that fans get by unlocking all 24 cosmetics in the Harbingers Collection Event.

Qualcomm Inc., the largest maker of smartphone processors, gave a tepid revenue forecast for the current period, indicating

SANTA CLARA, Calif.--(BUSINESS WIRE)--Jun 1, 2023--

Governments should stop cracking down on porn websites and instead take pride in sexual expression and help to make porn normal and "boring", the new...

Scientist have discovered a fly that... can't fly. In December 2021, the John Midgley and Burgert Muller from the Diversity of Pollinating Diptera in South African Biodiversity Hotspots project went to Lesotho, the only country in the world that has its entire territory located at an altitude of 1,000 metres and higher to see what they could find. At the Afriski mountain resort, they found 51 male specimens of Atherimorpha latipennis (a species discovered in 1956 but whose female had never been described) and a for the first time a female belonging to the same species which couldn't get off the ground. “It’s not unheard of for only the female of a species to be flightless,” says Midgley. “But there were no examples in this fly’s family, let alone its genus.” Martin Hauser, a senior dipterologist at the California Department of Food and Agriculture, who was not involved in the research, told the Guardian: “Active flight has only originated four times in the last three billion years, so it’s always interesting when a species loses the ability to fly. It isn’t super surprising to find flightless species. But it is remarkable when the first case of flightlessness is reported in a family.” Scientists could only make educated guesses about why the female had lost the ability to fly. Despite it being much faster than walking, allowing flies to escape predators. “flight is also costly,” said Midgley. “You have to grow wings, and it uses a lot more energy than walking.” “For the males it is worth flying around and being able to search a larger area for females,” said Hauser. “Even if, while flying, they are exposed to birds and other predators, and risk being blown off the mountain and ending up in a hot valley with no females.” Meanwhile, there are other species that can't fly like ostriches, kiwi and emus. It is thought they evolved to lose flight after the dinosaurs became extinct because there were no predators big enough to hunt them. Fly - you had one job... Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

CHICAGO--(BUSINESS WIRE)--Jul 13, 2023--

RESTON, Va.--(BUSINESS WIRE)--Aug 3, 2023--

It's the end of an era, at least for Mac gamers. On Feb. 15, 2024,