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

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

Can you solve the below geography rebus by decoding the below rebus ?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

who is silent in the parliament?

Which fur should we be getting from the Lion?

what does the below math rebus puzzle mean?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

What is the word or phrase?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?