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

It belongs to you, but other people use it more than you do. What is it?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

I am white when I am dirty, and black when I am clean. What am I?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Remove two matchsticks to make the below equation correct.

What number should come in place of the question mark below?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

There is something which is always coming but never arrives?