O_er_t_o_

Complete the missing letters of the given word.

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

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

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

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Give it food and it will live; give it water and it will die.

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

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?

During which month do people sleep the least?

Can you solve this picture maths equation?