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 Logic Puzzles Questions

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Q:

Eye Test Logical Challenge

lines1499317691.jpg image

A) 15 B) 14
C) 16 D) 17
 
Answer & Explanation Answer: A) 15

Explanation:
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Q:

Logical Challenge

Party1499235830.jpg image

A) 24 B) 11
C) 14 D) 18
 
Answer & Explanation Answer: C) 14

Explanation:

1 Grand mother

1 Mother

4 Wives

4x2 = 8 Daughters

Total = 1 + 1 + 4 + 8 = 14 Female members.

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Q:

Logic Challenge

Couple logic puzzle

A) 40 B) 20
C) 2 D) 36
 
Answer & Explanation Answer: C) 2

Explanation:

In the starting it is given that Couple went to the movie and No other went with them.

So total members went to movie is only 2.

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Q:

19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs.

A) 23 hours B) 47 hrs 15 min
C) 52 hrs 15 min D) 22 hrs 15 min
 
Answer & Explanation Answer: C) 52 hrs 15 min

Explanation:

Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.
And a 15 min interval
Total time they take to do 52 programs is 52 hours 15 minutes.

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Q:

Logical puzzle

You have 10 coins….arrange them in 4 straight lines such that each line contains 4 coins.

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Q:

Logical puzzle

You want to send a secret message to your friend Alex in the mail. But Sam, who you don't trust, has access to all your mail. So you put your message in a box with a lock. But you are not allowed to send a key! How can you get your message through securely?

Answer

- Send the box with the lock to Alex. 


- Alex can't open it, but can put another lock on the box. 


- Alex sends this box with the 2 locks back to you, you unlock your lock and send it back to Alex again.


- So there is just Alex's lock on the box and Alex can now open it.

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Q:

Logical puzzle

There are only two barbers in town. One of them has a nice, neatly trimmed head of hair. The other one's hair is a complete mess.Which of the two barbers should you go to and why?

Answer

The one with messy hair, as they cut the neat barber's hair.

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Q:

Logical puzzle

At a restaurant, how could you choose one out of three desserts with equal probability with the help of a coin? What if the coin is biased and the bias is unknown?

Answer

Our solution:


Toss the coin twice.
Let TH, HT and TT correspond to the three choices.
And if you get HH, just repeat (so it takes 8/3 tosses on average).


BIASED COIN

If the coin was biased, TH and HT would occur with equal probability.
So you could assign THHT, HTTH and THTH to the three choices, with other 4-toss outcomes rejected.
Or you could assign HTT, THT and TTH to the three choices, with other 3-toss outcomes rejected.

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