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Vishal barot

Comments 32

3 Coins

I think it is 0.25.

Suppose we get HH on first 2 flips then the nixt two flips can be HH,HT,TT,TH. therefore probability of HH =1/4 =0.25

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Going to the Track

Excellent Quiz!

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The Sinking Island

good question.

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Psycho Killer

excellent quiz

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Good luck at an interview with Google

As this questions may require 10-20 minutes therefore this cant be questions which should be answered correctly rather with confidence and tricks. Therefore this questions have to be answered as 1)How many golf balls can fit in a school bus? Ans. 2365 (give any number) and say if there were more balls they would have fallen from doors and windows. 2)How many piano tuners are there in the entire world? Ans.156782 rest are still learning 3)How much should you charge to wash all the windows in Seattle? Ans.15623486 as we may cut some amount for windows that get dirty again.

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Power of 2 (Microsoft Interview)

just mod by 2 and ans should be 0

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Sold!

yes 20$ profits totally.

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Matchsticks

yes it is very simple just needs concentration for seconds

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Time To Fuse

Good quiz

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Simple 24

good quiz

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Clever Commuter

You did not mention the time required by his wife to reach the station or the time at which they reached home.

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Classic Knights & Knaves

good quiz but easy

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The Bookworm

Good quiz . Explanation is right. As we want to see the names of the books we place it like this [A][B][C] Therefore the first page of book A is towards right (i.e towards start of book B. And the last page of book C is towards end of book B.

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3 Men and a Hotel Room

good quiz

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Greatest Area

I know this too.

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Charlie and the Chocolate Factory

good one just needs patience.

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Nice to meet you

Formula is n(n-1)/2 In the given problem n(n-1)/2=45 this gives n=9 or n=10

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Stuck in a brick building

You did not mention that it is open from outside and also the height of the roof.

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100 Light Bulbs

excellent quiz !

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Cracking the Safe

excellent quiz !

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The Twiddled Bolts

Where is the picture?

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Divide 1 to 20

Good one

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The Number Problem

Good one

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Don't Hang Yourself

Nice

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Birthday Problem (Classic)

If you dont understand then goto
http://www.mathsisfun.com/data/probability-shared-birthday.html

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Boys and Girls

Good one, It is a lateral thinking question

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Fork in the road

good question !

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Right or Left?

I see girl spinning clockwise

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Right or Left?

It changes. I can see both.

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Fork in the road

Good quiz but easy

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Microsoft Interview Question - Count it Out

nice question but it is easy

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Multiples of 8 plus 1

excellent

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Submitted Puzzles 1

5 6 12 balls part 2
You have 12 identical RUBBER balls each of 10 grams and one of 9 grams.You have three weighs of a weighing machine (not a balance scale) to determine which ball is different and whether it is heavier o ...
Doable
3.3