Dropping egg puzzle
You have two identical eggs and access to a 100 floor building. You don’t know how strong the eggs are. Eggs can be really strong (may not break if dropped from 100th floor) or fragile (break if dropped from first floor). You want to find out the highest floor from where an egg can be […]
Blue Eyed Islanders puzzle
1000 tribal people lives on an island. Out of them 100 have blue eyes and 900 has black colored eyes. Their religion forbids them to know their own eye color, or even to discuss the topic (there is no reflective surface where they can see their eyes). But all of them knows the eye color […]
Burning Rope puzzle
You have two identical ropes, which are non-uniform in composition. Each rope takes 60 minutes to burn (But non-uniformly, for example: 90% of the rope may burn in 5 min and rest 10% may take 55 min or any such composition). You don’t have any watch but a lighter. How will you calculate 45 minutes?
N Doors Puzzle
There are N doors in a row, numbered from 1 to N. Initially all are closed. Then you make N passes by N doors. In first pass you toggle (open the door if it is closed and close it if it is opened) all the doors starting from the first door. In the second pass […]
camel & banana puzzle
A Camel has to transport 3000 bananas from point A to point B, both 1000km apart. There are few constraints There is only one Camel. Camel can not carry more than 1000 bananas at one time. Camel eats one banana every kilometer when he travels. What is the maximum number of bananas which can be […]
3 basket puzzle (Apple/Orange Puzzle)
There are 3 baskets labeled ‘Apples’, ‘Oranges’ & ‘Mixture’. One of them contains only Apples, one only Oranges and one has mix of apples and oranges both. These baskets are not labeled correctly. In fact, the labels on these baskets always lie. (i.e. if the label says Oranges, Then you are sure the basket either […]
