You can see three almost identical images below. Can you spot the odd one out from them?
Can you think of any three-dimensional shape that comprises of exactly two surfaces?
In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?
What does does this rebus picture means ?
Find the next number in the sequence 1, 2, 6, 21, 88, __?
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?
I am a mother. However, I never give birth. I am a father. However, I never nurse my children. Wandering is not possible for me, but standing still happens occurs rarely. Who am I?
Can you find out which number multiplied by itself will give the output as 12345678987654321?
It's a protector. It sits on a bridge. One individual can see directly through it, while others wonder what it hides. What is it?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.