xfs

22 ms·

1. 181.▲
   by xfs 16y ago

   For Project Euler, they are all textual questions and require reasoning rather than mere calculation.
2. 182.▲
   by xfs 16y ago

   See also Project Euler http://projecteuler.net/ . Maybe you can use these as advanced captchas?
3. 183.▲
   by xfs 16y ago

   I guess you meant "to reason" but wrote it as "to move(use) brain"?