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

Why 1729 is a magic number? Answer Logically.

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

I am white when I am dirty, and black when I am clean. What am I?

If a wheel has 54 spokes, how many spaces are there between the spokes?

How can you take 2 from 5 and leave 4?