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

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Look at the picture and find out which square is not linked with any of the other squares.

Find the smallest sentence with all the English alphabet.

If eleven plus two equals one, what does nine plus five equal?

What Deficiency does the below rebus represent?

VIT_MIN

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?