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

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Why is 6 afraid of 7?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

How many sides does a circle have?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

Can you find the key in the picture below?