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 ?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What has 88 keys?

Can you find out the remainder when 3^300 is divided by 5?

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?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Identify the hidden meaning behind this picture?