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

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

How many letters are in the alphabet?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

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

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

What is the word or phrase below?
R | E | A | D

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?