John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

Find the missing letter in the last circle logically in the given below picture.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Can you spot the man between the coffee bean in the picture below ?

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

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?