What can you see in the middle of March and April that you can never see in any other month?

What kind of tree can you carry in your hand?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

What has no start, end, or centre?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

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

Do you know what I am?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?