There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

What number divided by 4 is the same as that number minus 4?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Which country gets ill every time?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Count the number of triangles in the picture below:

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

Solve the counting riddle by identifying the number of triangles in the given picture.

Can you count the number of squares in the given picture?