Brain Teasers # 10 - Equation

Puzzle:

Add a single straight line to make this equation true - the equals sign remains untouched.

5 + 5 + 5 = 550

Post the answer if you know it.


In the meanwhile, here is the solution to yesterday's puzzle:

Answer: No-one, an only son cannot have a brother, although they may have a sister. 

Cheers!

Brain Teasers # 7 - Rope Ladder

A ship is docked in the harbour. Over the side hangs a rope ladder with rungs a foot apart. The tide rises at a rate of 9 inches per hour. At the end of six hours, how much of the rope ladder will still remain above water, assuming that 9 feet were above the water when the tide began to rise?

Please post  the answer if you know it.

In the meanwhile, here is the solution to yesterday's puzzle.

Answer: Antelope: move it from the end to the beginning, the initial letters will then spell ALPHABET. 

Cheers!

Brain Teasers # 3 - She-goat, Wolf and Cabbage

A farmer returns from the market, where he bought a she-goat, a cabbage and a wolf (what a crazy market:-). On the way home he must cross a river. His boat is small and won't fit more than one of his purchases. He cannot leave the she-goat alone with the cabbage (because the she-goat would eat it), nor he can leave the she-goat alone with the wolf (because the she-goat would be eaten). How can the farmer get everything on the other side 

Post your answers if you can solve this. The answer will be announced tomorrow.

In the meanwhile, here is the solution to yesterday's puzzle

Answer: 12 + 6 + 1 = 19.

Note that the puzzle didn't ask for three digits to be circled!

Cheers!