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?

Look at the picture and find out which square is not linked with any of the other squares.

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

How many words can a pen with half refill write?

Spot the cat in the picture below

Find the hidden panda in the image below.

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Find the next number in the series below

21 32 54 87 131 ?