It works fine.
There are more questions simply. You need to add them all (just refresh few times the post page to gather them all).
I saved 5 of them (looks like there isn't more).
Question: what is the sum of 23+5=
Answer: 28
Question: what is the sum of 7+2
Answer: 9
Question: what is the sum of 8+5
Answer: 13
Question: what is the Capital of France?
Answer: Paris
Question: what is the sum of 7+2
Answer: 9
After adding all it worked fine.
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And the
http://www.9reyes.net also seems to be fine. Just double click on the status table row and it takes you to the message posted.