People make me, save me, change me, raise me. What am I?

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?

Buy me, smell me or deliver me, I do not change.

Who am I?

Find the Goldfish below the given Image.

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

Spot the cat in the picture below

What does below Rebus mean ?

esgg sgeg gegs gsge

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

What kind of band never plays music?

What is the longest word in the dictionary?