What is the Surname of Barbie Doll?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Which Burger Is Different in below image?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

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.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I have feet, but no legs. Which animal Am I?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?