#331 - Logical Playing Cards Puzzle

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

Logical Playing Cards Puzzle
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2 3 10 10

The 1st card has to be 2 and the last card has been 10 as there is no other way difference can be 8.
=> 2 ? 10 ?

because of clue 4, we know the 4th card is 10
=> 2 ? 10 10

because of clue 5, we know the 1st card is 3
=> 2 3 10 10

#332 - Mathematician Couple Trick Riddle

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied and said it is appropriate. Both are correct. What is written on the paper ?

Mathematician Couple Trick Riddle
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The text on the paper was X = XI + 1 which is inaccurate but when read from the girl’s side it becomes I + IX = X which is accurate.

#333 - Tricky Interview Riddle

In an interview a boy was asked an unusual question 'How two persons sitting with a table in between them cant see each other?' He was unable to reply. Can you?

Tricky Interview Riddle
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They were sitting opposite to each other and were not facing each other.

#334 - Sherlock Riddle

Sherlock Homes was challenge to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

Sherlock Riddle
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He drew a long line adjacent to the pre drawn line making the first line smaller.

#335 - Knockout Tournament Matches Puzzle

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 15 matches are played in total, how many players participated?
(b) If 50 players took part in the tournament, how many matches were played?

Knockout Tournament Matches Puzzle
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(a) If you look at the question closely, it is a knockout tournament and the winner will be just one. Thus no. of players is equal to 15+1=16.
(b) The number of matches will always be one less than the number of players (in knockout tournaments). Thus the answer is 49.

#336 - Cow 13 Letters Riddle

I can write cow in 13 letters.

Can You ?

Cow 13 Letters Riddle
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See o double you

#337 - Riddle for Mathematician

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Riddle for Mathematician
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XIX. On taking one i.e. I, we get XX i.e. 20

#338 - Classic Old Tricky Riddle

James named his first son Alpha, second Beta, third gamma and fourth Delta. What is the fifth son’s name.

Classic Old Tricky Riddle
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What

#339 - Maths Shopkeeper Problem

A brand new Beats Headphone was on sale at 20% as a promotional offer. By what percent must the headphone price be increased to sell it at the original price again ?

Maths Shopkeeper Problem
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25%.
Suppose a $10 item is reduced by 20%, the price will drop to $8. Now to make it the original price we must add $2 more which is 25% of $8.

#340 - Infosys Trick Interview Riddle

Bruce Banner was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Infosys Trick Interview Riddle
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Three.

The candles that were not extinguished will melt down completely eventually. Thus only three candles will remain in the end.