How many times do a clock's hands overlap in a day ?
When I get multiplied by any number, the sum of the figures in the product is always me. What am I?
What breaks yet never falls, and what falls yet never breaks?
What has many keys but can’t open a single lock?
Until it is measured, not known. Yet how you miss it when it has gone. What is it?
My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?
How much will a 38° angle measure when looked at under a microscope that magnifies ten times?
If a wheel has 54 spokes, how many spaces are there between the spokes?
Replace The Question Mark Below With the Correct Number. 2 {38} 3 4 {1524} 5 6 {3548} 7 8 {????} 9
I look at you, you look at me, I raise my right, you raise your left. What am I?
What does this below rebus puzzle mean?
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