Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Replace the question mark in the picture below.

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Spot what is wrong here in below Picture?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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?