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

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Find out the missing number in the picture attached:

What has many teeth, but cannot bite?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

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?