'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?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

If 21x = 79x, what is the value of x?

Name a key which is hardest to turn.

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?