What is the below Rebus indicate?

In the image below, can you find the value of an angle(y)

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Can you solve the rebus below?

I make two people out of one. What am I?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

When we see 2 but call 10?