Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

If an electric train is travelling south, then which way is the smoke going?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

What is both possible and impossible at the same time?

What is the riddle which can be asked all day with a different correct answer each time.

Can you solve the photo plexer logic ?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?