There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What does this below rebus puzzle mean?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What is always in front of you but can’t be seen?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?