Why is 6 afraid of 7?

Why do we preferably have round manhole covers and not square ones?

What is the Surname of Barbie Doll?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

What does this below rebus puzzle mean?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

What is red and smells like blue paint?

Why do you find that most of the buildings are deprived of the 13th floor?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?