The torches can just be made out in the dark, use the lighter and click on each torch. Go past each axe when it's at the top of its swing. Left hand puzzle match the pairs as shown in the right hand column. Right hand puzzle, just complete each sum.If you can't multiply 8 by 2 and subtract 9 then god help you.
If you're stuck or just lazy a complete walkthrough is here, http://escapetheroom.blogspot.com/2007/07/monster-basement.html about half way down the page