What is black when you buy it, red when you use it, and gray when you throw it away?

Decode this picture on T-Shirt and tell what it says ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

When we see 2 but call 10?

Which is heavier: a ton of bricks or a ton of feathers?

What kind of tree can you carry in your hand?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?