Saturday, June 21, 2008

6 Matches

You got 6 matches, arrange them to form four triangles. You can not break macthes in smaller pieces. Matches can only be connected at the ends, in other words you must use full length of a match.

Saturday, June 7, 2008

Airplane on conveyer belt

Here is interesting question I heard the other day, while it is not new but I liked it anyway:

Can an airplane lift off the conveyer belt which is moving at opposite way with the same speed that airplane would be running along the runway? So, basically plane would remain stationary relatively to the ground.

The answer is simple once you think about it.
Note: Comments may have spoilers! Come up with solution on your own before reading them.