#291 - Popular What Word Puzzle
I know a word which reads the same when written forward, backward or upside down.
Do you ?
Noon
#292 - 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
From bottom to top, the flavors are :
Strawberry
raspberry
pistachio
marshmallow
mint-chip
#293 - 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 ?
12=> 1+2+3+6
cannot be 1 (as number cannot be included)
#294 - 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.
1 2 3 4 5 9 and 7 8 9
sum of numbers 1 2 3 4 5 6 7 8 9 is 45 , so numbers cant be split into 2 equal parts.
I know i cant turn 9 upside down and make it 6 but i can turn 6 to make it 9.
#295 - 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?
Maximum distance: 30,450 kilometers.
For every 5 kilometers driven using this rotation, each tire will lose (2/29000)+(2/21000) of its tread.So, suppose we drive 5*N kilometers like this. Then, each tire will lose 2*N*((1/29000)+(1/21000)) of its tread. We wish to determine N so that the latter expression gets to be 1, representing all of each tire's tread. That happens when N=6090, which is when 5*N (the total kilometers were driven) is 30,450.
#296 - 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'.
13 x 3 + 1 = 40
Explanation:
The number of decks is irrelevant i.e any number of decks can be mixed and still the answer would be same.
Any card drawn will be a Ace,2,3,4,5,6,7,8,9,10,Jack,Queen or King, so there are 13 possibilities each time a card is drawn.
The fastest and luckiest way would need just 4 cards of the same kind.
The slowest way is our solution as it will guarantee a four of a kind.
i.e draw 3 of each kind =>39 cards will be fetched. now next card will guarantee 4 of a kind.
#297 - Short Math Riddle
Can you convert number zero(0) into a positive number using just one mathematical operator ?
0!
#298 - Solve Maths Equation Problem
Find the value of a by solving the maths equation in the picture below
2(remember bodmas)
#299 - Hard Number Sequence Riddle
Find the next number in the sequence
5 12 24 36 ?
50
sum of consectuve prime numbers
(2+3 , 5+7 , 11+13 , 17+19 , 23+27)
#300 - Tricky Maths Riddle
I know a number which is spelled in an alphabetical order.
Do you ?
Forty