Four friends a, b, c, d need to cross a bridge. a maximum of 2 peoples can cross at a time. it is night and they have just 1 lamp. people that cross the bridge must carry the lamp to see the way. a pair must walk together at the speed of slower person. speeds of: a: 1 minute to cross bridge b: 2 minutes to cross bridge c: 7 minutes to cross bridge d: 10 minutes to cross bridge now the question is... "what is the total minimum time required by all 4 friends to cross the bridge?"
Challenge for the masterminds: i'm an 8 letter word. first 4 letters are a question; 2, 3 and 4 protect our head; 5, 6 and 7 is a a liquid in a tree & the letters 7 and 8 are same. what am i ?
Funny puzzle: doctor harish and a bus driver manish are both in love with the same woman named priyanka. the bus driver need to go for a long trip of 10 days. before he left, he gave priyanka 10 apples. why?
Rajiv is twice as old as rakesh was when rajiv was as old as rakesh is now. the combined age of rajiv and rakesh is 112 years. how old are rajiv and rakesh now?
There are two candles of equal lengths and of different thickness. the thicker one lasts six hours. the thinner 2 hours less than the thicker one. ramesh lights the two candles at the same time. when he went to bed he saw the thicker one is twice the length of the thinner one. for how long did ramesh lit two candles?
I am an 8 letter word. i am kept secret from everyone. my 2nd, 3rd and 4th letters spell an animal. my 4th, 5th, 6th, 7th and 8th letters are a weapon. my 1st, 2nd and 8th letters are used for writing an exam. my 3rd and 4th letters are the same. guess what am i?
There is a green house. inside the green house there's a white house. inside the white house there's a red house. inside the red house there are a lots of babies. what is it?
I am a 10 letters word. the first four suggest power. you eat my 5, 6, 7 and 8. my 8, 9 and 10 represent a female a. i can also fly. what am i?
As tall as a tree; as small as a bug; as fast as an eagle; and as slow as a slug. many times in front or behind; but never on top and always aligned. what is it?
Who makes it, has no need of it. who buys it, has no use for it. who uses it can neither see nor feel it. what is it?