Why do you find that most of the buildings are deprived of the 13th floor?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

A father's child, a mother's child, yet no one's son.

Who am I?

What does this Rebus Picture mean?

What word begins and ends with an E, but has only one letter?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

What does the below rebus riddle means?