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

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

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

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?