What is the Surname of Barbie Doll?

You can see three almost identical images below. Can you spot the odd one out from them?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

The centre of the third figure is empty. What digit should fit inside?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Which point will the car reach to go out?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Who has married many women but was never married?