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

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

In the image below, can you find the value of an angle(y)

What number should come in place of the question mark below?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

what does this picture(rebus) riddle means ?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?