You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

How many times can you subtract the number two from the number fifty?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Which is faster, Heat or Cold ? Explain.

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

What is so fragile that saying its name breaks it?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What does this simple rebus mean?

Can you name some countries which do not have the alphabet 'A' in them?