What does this simple rebus mean?

Replace the question mark with the correct number in the below-given picture?

What does below Rebus mean ?

esgg sgeg gegs gsge

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

who is silent in the parliament?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?