Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

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

Can you place six X (crosses) in below board without making three in a row in any way ?

When we see 2 but call 10?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Look at the picture and find out which square is not linked with any of the other squares.

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Solve below rebus puzzle?