If 21x = 79x, what is the value of x?

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 richest man in the city Mr Rechard is kidnapped. James Bond is appointed to the case. At the crime scene, a note is found written by Mr Richard. The note read:

"First of January, Fourth of October, Fifth of March, Third of June."

James Bond knew that somehow, the killer's name was hidden in the note. The following were the suspects:

Jack Richard, the son and the heir of property.
John Jacobson, the employee of Richard.
June Richard, the wife of Richard.

James Bond took only a few moments to deduce the killer's name. Can you tell who was the killer?

Replace the question mark with the correct number.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What is more useful when it is broken?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?