I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?
I had an infinite supply of water and 5 litres and 3 litres jars. How would you measure exactly 4 litres in the least number of steps?
The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?
There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends. What is it?
People make me, save me, change me, raise me. What am I?
Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?
In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special. This date is special as: Date * Month = Year. Can you figure out which year of this century has a maximum number of such dates?
An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet. How much time do you think the monkey will take to reach the top of the pole?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
What four weights can be used to balance from 1 to 30 pounds?
A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated. The results are as follows John beats Jacob Minda beats Toni Toni beats John Who came first in the race?
The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.