What does this rebus riddle means ?

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?

Can you find the 09 errors in the picture below?

What has a ring but no finger?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Look at the picture and find out which square is not linked with any of the other squares.

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

What part of the chicken has the most feathers?

What am I?