What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

What building has the most stories?

How can a man go eight days without sleep?

What is the longest word in the dictionary?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What does this below rebus puzzle mean?