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

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

People put me on the table and cut me but do not eat me. What am I?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Which five letter word can be added at the end of below word to form a
valid word?

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What will you call your mother's brother's brother-in-law?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

How can you leave a room with two legs and return with six legs?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?