What always comes into a house through the keyhole?

A father's child, a mother's child, yet no one's son.

Who am I?

Why are all black people so quick ?

Move three sticks of the spiral below to form a square.

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Replace the question mark with the correct number in the below-given picture?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

On the occasion of Diwali, online seller companies in India are offering a big discount on Iphone14 as below.

: Flipkart offers a Flat 65% discount
: Amazon offers a 10% discount over and over again.
: Shopclues offers RS.45,000 off.

If the original cost of the iPhone is Rs.70,000 Which is the best offer for you?