While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

A guard is positioned at the one side of the bridge saying ‘A’. His task is to shoot all those who try to leave from ‘A’ to the other side and say ‘B’. He also need to welcome the person who comes from another side ‘B’ to his side ‘A’. The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave. You are at side ‘A’ and wish to go to another side ‘B’. you also know that it would take 1:45 hr to cross the bridge. How will you cross the bridge?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

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

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What is 3/7 chicken, 2/3 cat and 2/4 goat?