World's Hardest Riddles With Answers

#291 - Infineon Logic Interview Question

I purchased an awesome ice cream cone having 5 different flavor scoop.
Five flavors are pistachio, mint-chip, strawberry, marshmallow, and raspberry

I will give u some clues so that you can figure out the order of flavors from bottom to top.
1. The bottom flavor of the cone has 10 letters.
2. The marshmallow scoop is at between pistachio and the mint-chip scoop.
3. marshmallow is the raspberry scoop but below the mint-chip scoop.

So can you figure out the flavor of ice cream in order from bottom to top

#292 - Logical Number Problem

According to number theory of mathematics , a perfect number is a positive integer that is equal to the sum of its positive divisors excluding the number itself.
For example :
6 => 1+2+3
28 =>1+2+4+7+14

I know one more number that is a perfect number and contains not more than 2 digits (i.e 496 won't be consider as it contains 3 digits).

Find the number ?

#293 - Logical Interview Puzzle

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

#294 - Logic Puzzle Problem

Like an usual car, my new i10 car has 5 wheels(2 front + 2 Rear + 1 spare).
The rear wheel of the car will wear out after 21000 kilometers and the front wheel will wear out after 29000 kilometers.

What is the maximum distance I can cover assuming changing of wheels is not an issue?

#295 - Card Riddle

I have mixed 13 decks of cards.
What is the minimum number of cards must be taken out from the above mixed cards to guarantee at least one 'four of a kind'.

#296 - Short Math Riddle

Can you convert number zero(0) into a positive number using just one mathematical operator ?

#297 - Solve Maths Equation Problem

Find the value of a by solving the maths equation in the picture below

#298 - Hard Number Sequence Riddle

Find the next number in the sequence

5 12 24 36 ?

#299 - Tricky Maths Riddle

I know a number which is spelled in an alphabetical order.
Do you ?

#300 - Tricky Logical Riddle

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Anmol' decides to walk through all the flats, he finds all the flats except flat-62.
Anmol later founds that the local of the town have given it another name.

What is the name of the Flat ?