Can you fill the blank with the correct number?

6 30 870 756030 _____

Identify The phrase in the picture.

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

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?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

Spot the cat in the picture below

In the picture given below, can you find out which digit will take place of the question mark?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?