An interesting puzzle

via Richard Wiseman’s blog

Can you take the clock face below, and cut it into four pieces such that the numerals on each part add up to the same number?

So, for example, this solution would not work because the numbers on the four pieces add up to different amounts….

I like this puzzle! You may think it is easy for several times, only to find yourself such an idiot soon.

You can vote on the original post if you need a hint.

Happy Friday!

By the way, can anyone tell me how I can activate the ibus input method on Ubuntu 9.10??