2, 3, 5, 9, 17, _ What is the next number in the sequence?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Can you place three balls such that the equation shown in the picture holds true?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

Prove that twice of ten is the same as twice of eleven.

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A guard is positioned at the one side of the bridge saying ‘A’. His task is to shoot all those who try to leave from ‘A’ to the other side and say ‘B’. He also need to welcome the person who comes from another side ‘B’ to his side ‘A’. The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave. You are at side ‘A’ and wish to go to another side ‘B’. you also know that it would take 1:45 hr to cross the bridge. How will you cross the bridge?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.