How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?
Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L. Can you find an "ology" that begins with a P?
What does this rebus means ? PROG WORKRESS
Find the next number in the series? 2, 12, 36, 80, 150, 252, 392, _ ?
What does this rebus puzzle means ?
As easy as you can get into me, it is as hard to get out of me. Do you know what I am?
What is the riddle which can be asked all day with a different correct answer each time.
Find the number of squares in the below picture
A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?
I look at you, you look at me I raise my right, you raise your left. What am I?
Remove two matchsticks to make the below equation correct.
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.
