Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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

Prove that twice of ten is the same as twice of eleven.

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

I know a nine-letter word having only one vowel.
Do you ?

Move four matchsticks to the below square to form three squares?