Can you name some countries which do not have the alphabet 'A' in them?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

I’m tall when I’m young, and I’m short when I’m old. What am I?

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?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

Find out the missing number in the picture attached:

How is the moon similar to a dollar?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?