When it's bad luck to meet a black cat?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

What demands an answer, but asks no questions

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

My location can be determined by the below rebus.
So where am i ?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

What has to be broken before you can use it?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?