Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

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?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Can you start the fire using two pieces of wood?