The last riddle may help a little with the first of these, once you have all the ?? add them together to form the answer, oh yeah and give your answer as a textual number i.e. 122 = one hundred and twenty two.
2,3,5,7,??
3,7,11,15,??
3,4,6,8,??
26,13,7,4,??
9,18,36,63,??
43,45,65,97,??
the last one is killing me <img src="/ubbthreads/images/graemlins/ouch.gif" alt="" /> <img src="/ubbthreads/images/graemlins/ouch.gif" alt="" /> <img src="/ubbthreads/images/graemlins/ouch.gif" alt="" /> <img src="/ubbthreads/images/graemlins/think.gif" alt="" /> <img src="/ubbthreads/images/graemlins/think.gif" alt="" /> <img src="/ubbthreads/images/graemlins/think.gif" alt="" />