Count the number of lines in the image below ?

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.

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

How can you leave a room with two legs and return with six legs?

Can you count the number of quadrilaterals in the picture below?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?