Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Find the next number in the series below

21 32 54 87 131 ?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

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?

When is the top of a mountain similar to a savings account?