What is the below Rebus indicate?

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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

What is the largest number you can write with just 3 digits?

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?