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

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What is the next number in this matchsticks series riddle?

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

What does below Rebus mean ?

esgg sgeg gegs gsge

Do You See It?