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

Can it be possible to build a house that has all its four walls facing towards the South?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Which wheel of car does not rotate when you turn your car right?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?