How can you drop a raw egg from a height onto a concrete floor without cracking it?

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?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Which is heavier: a ton of bricks or a ton of feathers?

How many times can you subtract the number two from the number fifty?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What English word has three consecutive double letters?

What has lots of eyes, but can’t see?