11.   And at the highest skill level, youngsters can create their own science-based puzzles.

12.   And just for fun, they can get into a snowball fight with three skill levels at the Okeedokee Corral.

13.   And it takes decades to achieve the equivalent skill level as a black belt in judo, for example.

14.   And the players at OU who could not meet the skill level Tatum wanted were run out of the program.

15.   And sometimes that can be attributed to a skill level or just the will to win.

16.   Any golfer, regardless of skill level, can always use some extra golf balls.

17.   As children master each skill level, the difficulty of the questions and subject matter increases automatically.

18.   As in Doom, you may choose the skill level, from trainee to expert.

19.   As opposed to hacking, which can demand a range of skill levels, virus writing traditionally attracted a more technically oriented set.

20.   As the skill level becomes more difficult, coaches will appear more often.