Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What does Alexander the Great and Winnie the Pooh have in common?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

When we see 2 but call 10?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?