What does below rebus means ?

What is the word or phrase?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What has to be broken before you can use it?

Find the next number in the sequence

5 12 24 36 ?

You bought me for dinner but never eat me. What am I?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Find the number of squares in the below-given picture.

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?

How many triangles are there on the puzzle below?