What number should come in place of the question mark below?

By using 'because' continuously three times, can you make an English statement ?

What is the last thing you take off before bed?

What has lots of eyes, but can’t see?

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?

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

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

When 99 is considered higher than 100?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?