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

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

What begins with T, ends with T, and has T in it?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

There is a place where if I stand up straight, I will still be considered sideways.

How many triangles can you find in this given picture?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?