If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

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

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

I’m orange, I wear a green hat and I sound like a parrot. What am I?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

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?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

The more you take me, the more you leave me behind.
Who Am I?

How many letters are in the alphabet?