I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I don't get anymore wetter, no matter how much rain falls on me.

What is the Surname of Barbie Doll?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

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

If an electric train is travelling south, then which way is the smoke going?

How many letters are in the alphabet?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

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?