What building has the most stories?

What does below rebus means ?

A bomb exploded in a room full of married couples and no one died. How?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

81 x 9 = 801. What must you do to make the this equation true?

Can you make a six-letter word using the letters N, A and B ?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Who can jump higher than a Mountain?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?