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

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What can go through glass without breaking it?

Why is the longest human nose just 11 inches?

I have teeth but i don't bite. Who Am I ?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What does the rebus below mean?

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