What does this Rebus Picture mean?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Using eight eights and addition only, can you make 1000?

Can you write down eight eights so that they add up to one thousand?

What has to be broken before you can use it?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.