Analytical Reasoning Puzzles With Answers | Best Riddles and Brain Teasers

#1191 - Situation Puzzle

3 surgeons decided to go for a camp and hired a guide for assistance. Over campfire , they met with an accident and the guide got seriously injured. The guide needs surgery(a minor one). The 3 surgeons decide to operate but they have only two medical gloves. To save the guide , all three surgeons are needed to operate on the guide, in sequence.
How can this be done without any of them being exposed to the blood of any of the others?

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The first surgeon operates with the first glove (glove A) inside the second glove (glove B). The second surgeon operates using just glove B. The third surgeon operates using glove A, turned inside out, inside glove B.

#1192 - Mathematics Puzzle

Lavesh can paint a a house in just 3 hours.However it takes 6 hours for vishesh to complete the same job.
How long would it take for both to complete the same job?

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two hours.

lavesh who could complete the job in 3 hours could complete 2/3 of the job in two hours. Vishesh who complete the job in 6 hours could complete 1/3 of the job in two hours.
2/3 + 1/3 = 1.

#1193 - Analytical Maths Riddle

Can you find four consecutive prime numbers that add up to 220?

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47 + 53 + 59 + 61 = 220

#1194 - Detective Brain Teaser

Detective Ixolite of the NYPD was investigating a murder at Chicago.
It was a difficult case, and Ixolite was completely stumped until he noticed a message sent to him by the killer cunningly hidden in a newspaper advertisement selling Car Licence Plates.
Detective Ixolite thought about it for a while, and when he had solved the puzzle, immediately arrested the guilty man.

Q1) How did Ixolite know the advert was a clue for him?

Q2) Solve the code and tell me who Ixolite arrested.

This is the newspaper advert (Car licence plates for sale) that Detective Ixolite saw.

Plates For Sale;

[W 05 NWO]
[H 13 HSR ]
[O 05 EBM]
[D 08 UNE]
[U 10 HTY]
[N 04 BRE]
[N 16 TTE]
[I 26 LHC ]
[T 10 AEE]
[I 26 CNA]
[X 22 VDA]

View Answer Discuss

1)The first bit is easy, as the first letter of each plate spells WHODUNNIT IX(A challenge to our Detective.)
2)The second bit is a little trickier, but I gave you the solution.If you read the last three letters in each plate from the bottom up and right to left you get ADVANCE EACH LETTER BY THE NUMBER SHOWN, so advance W by 5 to get B, H by 13 to get U and so on until you spell BUTLER DID IT.

#1195 - Answer This Riddle

What can travel around the world while staying in a corner?

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A Stamp

#1196 - Logic Word Puzzle

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

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Queue (remove the last four letters â€“ the pronunciation is the same)

#1197 - Phrase Puzzle

what common phrase is represented by below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

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When the going gets tough, the tough get going.

#1198 - Dictionary Spell Riddle

I noticed one of word in oxford dictionary is spelled incorrectly. What about you ?

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the word is 'incorrectly'

#1199 - Most Stupid Question

What can you serve, but never eat?

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"A Tennis Ball" Or a "Badminton shuttle"

#1200 - Maths Time Puzzle

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

View Answer Discuss

In one hour,

Soln 1:
the large inlet pipe fills 1 / 3 of the tank;
the small inlet pipe fills 1 / 6 of the tank;
the outlet pipe empties 1 / 9 of the tank; and therefore
all three pipes together fill [ (1 / 3) + (1 / 6) âˆ’ (1 / 9) ] of the tank.

Fraction of the tank that will be filled in 0.64 hours =
0.64 [ (1 / 3) + (1 / 6) âˆ’ (1 / 9) ] = 0.25.

Soln 2:
Let V be the total volume of the tank. From equation (1),

Flow Rate (large inlet pipe) = V / 3
Flow Rate (small inlet pipe) = V / 6
Flow Rate (outlet pipe) = V / 9.

Substituting in equation (2),

Rate of Accumulation in tank = (V / 3) + (V / 6) âˆ’ (V / 9).

Using the above result in equation (1),

Time required to fill the complete tank = V / [ (V / 3) + (V / 6) âˆ’ (V / 9) ].

Note that V cancels out on simplifying the above expression.

Fraction of the tank that will be filled in 0.64 hours =

0.64 [ (1 / 3) + (1 / 6) âˆ’ (1 / 9) ] = 0.25.