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

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

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?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

What will you call your mother's brother's brother-in-law?

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?