What's the only room from which no one can enter or leave

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

10+10 and 11+11 can give you the same answer.

Explain how?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Spot what is wrong here in below Picture?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Which Burger Is Different in below image?

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