Which is the correct shadow of the bird?
John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?
I die but do not live. What am I?
A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log. Can you calculate the weight of the entire wooden log?
I’m orange, I wear a green hat and I sound like a parrot. What am I?
You Throw The Outside, Cook The Inside Eat The Outside, Throw The Inside. What Is It?
Count The number of F's in the paragraph below: "FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"
What can go up a chimney down, but can't go down a chimney up?
It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers. But do you know how many of these numbers are prime?
During which month do people sleep the least?
Can you find the missing piece of the Porsche?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki
