What is black when you buy it, red when you use it, and gray when you throw it away?

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?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

What occurs twice in a week, once in a year but never in a day?

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

What came first, the chicken or the egg?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?