Can you solve the below tricky visual equation?

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?

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

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

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

I have no life, but I can die. What am I?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

How many times in a given day, minutes and hour clock comes in a straight line ?

Whats the next number in the below number sequence pattern.

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?