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

You need to arrange three 7 and mathematical symbols to form number 1?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.

Can you find out how many chocolates are there in P and Q respectively?

I travel all around the world but always stay in the corner. What am I?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

What is the next number in this matchsticks series riddle?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?