There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Solve the mathematical equation in the picture below.

What has hands, but can’t clap?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?