So there you go:

1: Top left (Hold the left mouse and you will see 2008)
2: 48
3: 33
4: Move your mouse over David's head
5: Mario = oiraM (Left bottom, it's reverse)
6: The word "What" is the answer.
*** STAR ***
7: Okay
8: Click on the "8" in the question's number
9: Search for the "V"
10: It's 36
11: Click on the big space in the question
12: Click FAST on the clock
13: Drag the logos until you'll see a button
*** STAR ***
14: Click on the word "Green" on the question ("Click on the word green")
15: It says to remeber: Circle, Square, Triangle and pentagon
16: Bottom left (Match ???)
17: Write as they says: one word
18: B, You cannot read it from right to left.
19: Do what says *** HIDE STAR: CLICK OVER THE YELLOW BUTTON ***
20: There's six F's, so the anwser is 6.
21: If you roll over the text some letters are red and caps. Write them.
22: Circle, Square, Triangle and pentagon.
23: 23.
24: Do the maze, becouse there really are stars there!
25: 9 have no circle.

That's it!