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?

What question can you never answer yes to?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Which wheel of car does not rotate when you turn your car right?

What has one letter and starts with an E?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

How many letters are in the alphabet?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?