Which is the correct shadow of the bird?

In the picture below can you find the correct switch that will turn on the bulb?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Readers with high attention to detail can spot the cheater in the exam hall in 5 seconds. Are you one of them? Test your visual skills now!

How many times can you subtract the number two from the number fifty?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Readers with the eyes of a hunter can find the snake in the field. Can you? Test your puzzle-solving skills now!

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

O_er_t_o_

Complete the missing letters of the given word.