8. 5
10. no

platypus, the bear was white

Yep.

11. White, its a polar bear because he is in the north pole

whoops, didnt look at the second page, deep

damn auto correct, that was supposed to be derp not deep

12. What have you had for all your life, anyone can use it, but nobody can steal it?
13. What causes joy at first, but later turns into blubber?

@Frank. 10 u kind of got right but u didn't get the actual answer. The simplest alternative answer to 10 riddle could be 'NO' as this is what the riddle asks. As most cannot answer the question, the reply remains 'No'.
Number 8 you got right :)

@platypus thanks for sharing ;)

12. A penis?
13. Sex without any prevention

Someone tell me why the solution to 7 can't be penis? Please try to refute that a workable solution to 7 isn't penis.

Madonna doesn't have one

And how does the Pope excrete nitrogenous waste, if he never uses his?

14. I am free for the taking through all of your life, though given but once at birth. I am less than nothing in weight, but will fell the strongest of you if held. What am I?

15. A spirited jig it dances bright, banishing all but darkest night. Give it food and it will live; but give it water and it will die. What is it?

16. The man who invented it, doesn't want it for himself. The man who bought it, doesn't need it for himself. The man who needs it, doesn't know he needs it. What is it?

17. It is better than the best of things and worse than the worst of things. You love it more than life. You fear it more than death. The rich have need of it, and the poor have it in endless supply. What is it?

18. It runs as it will, but never does it walk.
There is a mouth to see, but never does it talk.
A bed it surely owns, but never does it sleep.
Possesses it a head, but not a one that weeps.

19. I have seas without water,
Coasts with no sand,
Towns without people,
Mountains without land.

20. It has neither mouth nor teeth, yet eats it´s food steadily. It has neither village, nor home, nor hands, nor feet. Yet it wanders everywhere. It has neither country, nor means, nor office, nor pen yet it is ready for fight - always. By day and by night there is wailing about it. It has no breath, yet to all it appears.

14. Breath?

16. Coffin?

18. River?

I`ll make it very easy for you guys. If you know your literature, then you`ll know where these are from.

21. What has roots as nobody sees,
Is taller than trees,
Up, up it goes,
And yet never grows?

22. Thirty white horses on a red hill,
First they champ,
Then they stamp,
Then they stand still.

23. Voiceless it cries,
Wingless flutters,
Toothless bites,
Mouthless mutters.

24. An eye in a blue face
Saw an eye in a green face.
"That eye is like to this eye"
Said the first eye,
"But in low place,
Not in high place."

25. It cannot be seen, cannot be felt,
Cannot be heard, cannot be smelt.
It lies behind stars and under hills,
And empty holes it fills.
It comes first and follows after,
Ends life, kills laughter.

26. A box without hinges, key, or lid,
Yet golden treasure inside is hid,

27. Alive without breath,
As cold as death;
Never thirsty, ever drinking,
All in mail never clinking.

28. This thing all things devours:
Birds, beasts, trees, flowers;
Gnaws iron, bites steel;
Grinds hard stones to meal;
Slays king, ruins town,
And beats high mountain down.

For Ankara:

14. I also guess it is Breath
15. Fire
16. I`ve no idea, but coffin sounds quite smart
17. Feelings?
18. River
19. A map
20. Time?

12: a name!
13: snow!

Ok, now the other ones:
17: nothing
22: teeth
25: darkness?
26: an egg
27: time
A few were from the Hobbit ;)

Thanks everyone for contributing and also remembering to add the numbers

28. Bill McFarland world's most popular thief was caught stealing.Because of his popularity,The judge give him a strange punishment.He order him to sentenced to death but he can choose his own way to die.

What way of death Bill McFarland must choose ?

29 It was a dark stormy night and a couple were in a car racing madly through a foreign city. The car broke down and the husband had to go get help from someone who spoke his language. He was afraid to leave his wife alone in the car so he pulled up the windows and locked the car before leaving. When he came back, the car was in the same state as he had left it but his wife was dead, there was blood on the floor and there was a stranger in the car. What happened?

30. Acting on an anonymous phone call, the police raid a house to arrest a suspected murderer. They don't know what he looks like but they know his name is John and that he is inside the house. The police bust in on a carpenter, a lorry driver, a mechanic and a fireman all playing poker. Without hesitation or communication of any kind, they immediately arrest the fireman. How do they know they've got their man?

28. Snoo-snoo

29. While he was away, his (menstruating) wife had died of suffocation, and he became estranged from her, considering her a mere stranger.