I am lying and I always lie. Tell me whether I am lying or telling the truth.

How can one talk without saying a single word?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Can it be possible to build a house that has all its four walls facing towards the South?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

How many times do a clock's hands overlap in a day ?