Solution:

Britney speaks truth on only Thursday.

Solution:

Yes. All three of them are the best. Laughter is the best medicine, living well is the best revenge and a good offense is the best defense.

Solution:

Turning 30

Solution:

Kungfu Panda

Solution:

1) Monkey
2) Leopard
3) Horse
4) Cat
5) Mouse
6) Porcupine
7) Lion
8) Fox
9) Donkey

Solution:

2 legs

Explanation:
Since all the pets are on the bed, and the chickens and parrots are flying in air, there are only two legs standing on the floor in that room. That legs are your own.

Solution:

They are the same houses that you saw on the opposite direction while coming back home. Thus there are fourteen houses between your home and the grocery store.

Solution:

$16

Solution:

They can neither be true nor be false. They contradict each other and these statements are known as paradox.

Solution:

The third son bought a candle and a matchstick. He lighted the candle from the matchstick and the light filled the entire room.