A wave of robots joining my forum

[TeaTephi]

I have a new wave of robots trying to join my forum.  I have anti-bot measures and some anti-bot questions, but they don't block them any more.  Any ideas?

[Arantor]

If it's the site in your profile, the questions are pretty generic and surprisingly easy to answer even for a bot.

I'd suggest picking questions that are more related to what your site is about rather than very broad questions.

[TeaTephi]

ok I'll try that.

[Absorb]

Had a look at your site and now have to put the eagle - Good measure

I had the same problem - I banned one IP and my ban list showed the spider tried to get back in 850 times in 3 days.

I stopped all my spam bot problems by asking what letters were in a picture on the top of the page