#301 - 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'.

Card Riddle

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.

#302 - Short Math Riddle

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

Short Math Riddle

0!

#303 - Solve Maths Equation Problem

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

Solve Maths Equation Problem

2(remember bodmas)

#304 - 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)

#305 - Tricky Maths Riddle

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

Tricky Maths Riddle

Forty

#306 - 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 ?

Tricky Logical Riddle

One Minute flat

flat 62 => Sixty second flat => One minute flat

#307 - English Sentence Riddle

By using 'because'continuously three times, can you make a English statement ?

English Sentence Riddle

I a dictionary where 'acid' comes before 'because', because 'because' begins with 'B'.

#308 - One Word Riddle

There are five vowels (a, e, i, o, u) in English language.
Can you tell us a word contains of all these vowels ?

One Word Riddle

Unquestionably

#309 - Smart Logic Riddle

A sea diver is a real show off.
He showed everyone that he can hold his breath under water for 15 minutes.

I went to the diver and told him that i can be under water for double the time i.e 30 minutes.
He responded that he will give me 1000$, if i would be able to do it.

I won the 1000$.

what did i do ?

Smart Logic Riddle

I filled a glass full of water and held it over my head for 30 minutes.

#310 - GK FAQ Riddle

Can you name some countries which do not have the alphabet 'A' in it. ?

GK FAQ Riddle

Belgium, Chile, Fiji, Egypt