What does this simple rebus mean?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

By what process could you make a 'Tea-Table' into food?

Why did Buffon take the goal with him after every Juventus match?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Count the Triangle in the figure given below:

O_er_t_o_

Complete the missing letters of the given word.

When it is alive we sing, when it is dead we clap our hands. What is it?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211