People make me, save me, change me, raise me. What am I?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

Count the number of triangles in the picture below:

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Find the hidden tiger in the given optical illusion ?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Which tank will fill first?

What do you answer even though it never asks you questions?

You can hear me, but you can't touch or see me.

What am I?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?