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

Solve the following series:
AZ, GT, MN, __, YB

A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

What is the coolest letter in the alphabet?