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

What is the last thing you take off before bed?

How is a fly different from a mosquito?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Can you solve the maths in the below-given picture equation?

81 x 9 = 801. What must you do to make the this equation true?