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

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Count the number of squares in the picture below.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

You need to move three matchsticks to form three squares. Can you do it?

How do you go from 98 to 720 using just one letter?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?