If 21x = 79x, what is the value of x?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

Which country gets ill every time?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Can you find out the total number of triangles in the given figure?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

What is the word or phrase?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?