Find the next number in the series.
1 10 24 43 67 ?

What does this mathematical rebus means ?

Move four matchsticks to the below square to form three squares?

When can we add 2 to 11 and get 1 as the correct answer?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

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

What is the centre of gravity?