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

Can it be possible to build a house that has all its four walls facing towards the South?

If six children and two dogs were under an umbrella, how come none of them got wet?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

There is a place where if I stand up straight, I will still be considered sideways.

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?