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

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Replace the question mark with the number below given a simple math problem.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What goes through cities and fields, but never moves?

Move four matchsticks to the below square to form three squares?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?