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

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

If you say my name, I will no longer exist. What am I?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Which English verb becomes past tense just by rearranging the letters?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?