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?

Which five letter word can be added at the end of below word to form a
valid word?

> Pin
> Check
> Boiling
> View

Prove that twice of ten is the same as twice of eleven.

You need to arrange three 7 and mathematical symbols to form number 1?

Can you count the number of lines in the below picture?

You can hear me, but you can't touch or see me.

What am I?

What has many keys but can’t open a single lock?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What is common among 11, 69, and 88?

I always drive my customer away.

Who am I?