The centre of the third figure is empty. What digit should fit inside?

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.

What does this mean?

CCCCCCC

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

What has one eye, but can’t see?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

What does below pictogram mean?

What does the below rebus riddle means?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

Count the number of triangles in the picture below: