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

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Find the number of squares in the below picture

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Which is the rope you never skip with?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.