FunZONE-4-Geeks

Puzzles 1. Sand timer puzzle You have two sand timers with you. One can measure 7 minutes and the other sand timer can measure 11 minutes. This means that it takes 7 minutes for the sand timer to completely empty the sand from one portion to the other. You have to measure 15 minutes using both the timers. How will you measure it ? Solution: 7 Minutes Sand Timer Finished. Time Remaining in 11 minutes timer - 4 minutes Reversing the 7 minutes timer - 4 minutes will elapse. 3 Minutes will left. Once 11 minutes gets over reverse the 11 minutes timer again to use that 3 minutes. 8 Minutes left. Now Reverse 7 minutes timer to measure 7+8 = 15 minutes. *************************************************************************************************************************************** 2. 17 Horses Puzzle A farmer wants to div...

Puzzles 1. King Octopus and Servants King Octopus has servants with six, seven, or eight legs. The servants with seven legs always lie, but the servants with either six or eight legs always say the truth. One day, 4 servants met : The blue one says: Altogether we have 28 legs. The green one says: Altogether we have 27 legs. The yellow one says: Altogether we have 26 legs. The red one says: Altogether we have 25 legs. What is the colour of the servant that says the truth? Solution: The green one is telling the truth. Lets assume that one of them is telling the truth and then try to prove that. Since the four are disagreeing then 3 must be lying. Lets say blue is telling the truth: so the blue one has either 6 or 8 legs. And each of the other octopus is lying hence has 7 legs. So our total legs beco...

Puzzles 1. Crossing the Bridge Puzzle 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? Solution: 17 mins 1 and 2 go first, then 1 comes back. Then 7 and 10 go and 2 comes back. Then 1 and 2 go again, it makes a total of 17 minutes. *************************************************************************************************************************************** 2. Ant and triangle Problem Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a directio...