A combat level is you overall fighting skills. (attack, strength, defense, hitpoints, magic, ranged, and summoning all contribute to your combat level).
you'll have to become clearer do you mean summoning level or combat level? but for summoning this is the highest answer is when you get 14 summoning it will start growing faster.
Chickens
Lester demons are good and black demons. the both give good drops.
No...lol
By fighting.
Yes you can. You may be any level ranging from level 3-126 on a free server, or 3-138 on a member's server.
cockroach soldiers are level 83.
You have to be a member, and have enough agility level.
Scorpions will attack players that are up to 2 times their combat level. The same rule applies to most other monsters as well.
naruto-arena OMG! You mean there is a a naruto game that is like rune scape! I so got to check it out!
on a snow mobile the whole level!
You have to have the required woodcutting level and a hatchet