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

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

What does this rebus mean?

O
N
C
E
TIME

Find the hidden tiger in the given optical illusion ?

What can go through glass without breaking it?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you decipher the two rows to find the hidden word?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

What does this rebus means ?

PROG WORKRESS