What is the below Rebus indicate?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Why blonde cannot dial 911?

The more it dries, the wetter it becomes. Can you tell what it is?

What is the next number in this series?

4,12,84,3612....

Find the missing letter in the last circle logically in the given below picture.

Which flower has two lips?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.