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### Samsung Interview Puzzles Questions With Answers

Samsung Interview Puzzles Questions With Answers 1 : Hour Glass Riddle
Difficulty ★★★☆☆        Popularity ★★★☆☆

You have two hour glasses one measure 7 minutes and other measure 4 minutes.
Using these two hour glasses, you need to measure exactly 9 minutes.

How come ?
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Samsung Interview Puzzles Questions With Answers 2 : Challenging Puzzle
Difficulty ★★★★☆        Popularity ★★★★★

Outside a room there are three light switches. One of switch is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb ??
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Samsung Interview Puzzles Questions With Answers 3 : Oracle Probability Interview Question
Difficulty ★★★★☆        Popularity ★★★★★

What is the probability of choosing the correct answer at random from the options below.

a) 1/4
b) 1/2
c) 1
d) 1/4
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Samsung Interview Puzzles Questions With Answers 4 : Cross Bridge Puzzle
Difficulty ★★★★☆        Popularity ★★★★☆

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?
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Samsung Interview Puzzles Questions With Answers 5 : Tricky Logic Puzzle
Difficulty ★★★☆☆        Popularity ★★★★☆

I have some blue and red sock in my drawer.
I have total of 4 socks.
I pick 2 socks and chances that i get pair of red socks is 1/2.

What is the chance of picking a pair of blue socks ?
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Samsung Interview Puzzles Questions With Answers 6 : Knockout Tournament Matches Puzzle
Difficulty ★★★☆☆        Popularity ★★★★☆

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?
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Samsung Interview Puzzles Questions With Answers 7 : Tough Probability Interview Question
Difficulty ★★★★☆        Popularity ★★★★☆

There is a country where everyone wants a boy. Every family continue to have babies till a boy is born. If the probability of having a girl or a boy is the same, what is the proportion of boys to girls after some time in that country?
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Samsung Interview Puzzles Questions With Answers 8 : Maths Logic Riddle
Difficulty ★★★☆☆        Popularity ★★★★★

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten digit numbers.

But i also knowns how many of these numbers are prime.

Do you ?
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Samsung Interview Puzzles Questions With Answers 9 : Logical Thinking Riddle
Difficulty ★★☆☆☆        Popularity ★★★★★

I have 100 coins in my wallet.

What is the minimum number of coin(s), i would be required in order to make sure each coin touched exactly three other coins.
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Samsung Interview Puzzles Questions With Answers 10 : Water Pails Puzzle
Difficulty ★★★☆☆        Popularity ★★★★☆

If you had an infinite supply of water and a 5 quart and 3 quart pails, how would you measure exactly 4 quarts? and What is the least number of steps you need?
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