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

Which English verb becomes past tense just by rearranging the letters?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What do you get if you add 2 to 100 four times?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

Which Travels Faster? Solve below famous picture riddle:

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Remove two matchsticks to make the below equation correct.