Move four matchsticks to the below square to form three squares?
There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.
How many marbles are in the box?
You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.
How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?
A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.
If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.
Can you calculate how many eggs in that container are fresh?
A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.
For how long is each player on the pitch?
What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...
Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.
How will you plan your escape before you freeze to death on the frozen lake?
Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.
There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.
Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?
I have an apple tree , number of apple in this tree get doubles every week.
On 30th week , the tree gets completely filled with apples :-)
Can you tell me , on what week does my tree is half covered with apples ?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
