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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What jumps when it walks and sits when it stands?

If you say my name, I will no longer exist. 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?

I’m tall when I’m young, and I’m short when I’m old. What am I?

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

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

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?