What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

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

Who am I?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you count the number of squares in the given picture?

What has one eye, but can’t see?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

What building has the most stories?

If eleven plus two equals one, what does nine plus five equal?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Spot what is wrong here in below Picture?