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

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I throw two dice simultaneously.

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

What question can you never answer yes to?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Can you make four (4) nines (9) equal 100?

Who can jump higher than a Mountain?

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

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?