Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Solve the following series:
AZ, GT, MN, __, YB

Find the next number in the series below

21 32 54 87 131 ?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

What can you hold in your right hand, but never in your left hand?

Can you find the key in the picture below?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

In the four images below, can you find the odd one out?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?