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Three athletes are running around an athletics track. The fastest athlete completes a lap in two minutes, the middle athlete completes a lap in three...

This is an update of one of our first ever blog posts, but it's still relevant today. One of our colleagues went to a quiz...

In the "sum" below one of the digits is missing, marked by a question mark. Clearly this is not an addition, subtraction or any normal...

In the "sum" below one of the digits is missing, marked by a question mark. Clearly this is not an addition, subtraction or any normal...

I asked five people the following six questions: What colour are Maddy's eyes? What is the cat's name? How old is George? Who is Fiona's...