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 anyone tell me a word in the English dictionary which has a silent 'z'?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

What word is represented by this rebus?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

How many letters are in the alphabet?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?