If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

What's the best place to go shopping in the ocean?

What can you see in the middle of March and April that you can never see in any other month?

How many triangles can you count in the figure given?

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

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

What is the largest number you can write with just 3 digits?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?