By Chris Prentice NEW YORK A top U.S. Securities and Exchange Commission (SEC) official on Friday rejected criticism

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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.

ORLANDO, Fla.--(BUSINESS WIRE)--Aug 23, 2023--

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Nostalgic internet users have been left divided over whether fitness icon Richard Simmons wore a headband back in his heyday. Sometimes, the way we remember things from our younger days which turn out to be completely different from how they actually were, and people are finding that their memory of Simmons always wearing a headband is totally wrong. Simmons was well-known for his aerobics videos back in the 80s and was often styled in legwarmers, short shorts and vest tops. Sign up to our free Indy100 weekly newsletter But, debate has erupted online about whether he wore a headband or not, after image searches of the fitness guru consistently show him without one despite people's differing memory. Did Simmons wear a headband? The debate was recently sparked by TikToker Kelly Manno who posted a now-viral video responding to a fan who said: “What until she finds out Richard Simmons never wore a headband.” Initially, Manno suggested the statement was ridiculous before revealing that every picture she found of Simmons showed him without one. She joked: “What do they think they did? Went through the whole internet and scrubbed every photo of Richard Simmons ever wearing a headband?” @kellymanno They’re trying to make #GenX look like we are crazy. And its gonna work!!! #genx #boomer #millennial #mandellaeffect #richardsimmons #headband #conspiracytherory #80skid #90skid On TikTok, one baffled user commented: “He definitely had a headband! The wrist bands and all!” Another said: “HE WORE A HEADBAND!! I’m positive!!!” But, it would appear that Google Images does not return a single image with Simmons himself sporting a headband. On Reddit, someone referred to the phenomenon as a case of the Mandela effect – this describes when a large part of the population people believes that an event happened when it didn’t. They wrote: “I'm 100 per cent sure Richard Simons wore a headband. You cannot find even ONE picture of him wearing one on Google Images. This one is the most powerful Mandela effects I've ever experienced.” 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.