You should have around 737,627 Exp by the time you are level 70 in a skill.
463,885exp
Every skill in Runescape needs the same amount of xp to get to lvl 99. The xp until lvl 99 in ANY skill (including Range) is:Approximate: 13,000,000Exact: 13,034,431So basically 13mil xp. ;)
To get level 40 in a skill you need exactly 37,224 xp.
Same as for level 99 in any other skill. About 13 millions.
No F2p can not get any Hunter xp or any Members skill xp like Summoning, Fletching, or Thieving.
You can get some good xp from doing minigames and then cashing in the points for the skill or just train it.
101,333 xp.
The same as for level 50 in any other skill: 101,333 xp. You can look this up in the runescape.wikia article about "experience". You can also right-click on a skill, and set a target; this will quickly show you how many xp you are missing for the selected target.
A long, long time.
The same as for any other skill. About 4 million. You can check how much you are missing by setting a certain level as the target in the list of skills, then moving your mouse over the skill.
Penguin points are calculated based on the level of the skill you intend to spend PPs on. The calculation sums up to x10 experience based on your skill level. For a rough guide to how much XP you'll receive, refer to the related link I've provided you.
In Runescape, You receive 65 Magic XP for every High Alchemy spell that is cast.