A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

What does a man do only once in his lifetime, but women do once a year after they are 29?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Which word does the below Plexor means ?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

What brings you down but never up?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?