Solution:

You need to write numbers as Roman Numerals.

29 = XXIX
1 = I
29 - 1 = XXIX - I = XXX
XXX = 30

Solution:

0.

Explanation:
He scores at least 4 goals --- False
He scores less than 4 goals --- True
He scores at least 1 goal. --- False

Solution:

The letter 'X'.

X - 24th Letter of the alphabet.
XX - 20 in roman numerals.
XXX - labels for movies that are not clean.

Solution:

There are 14 3's in the dialer screen.

Solution:

Door number-1.

The Symbols on the doors are actually number + mirror images of the number.

Solution:

If You can read this you are awesome.

Solution:

The five hidden words are
1. Rush
2. Paint
3. Tap
4. Bucket
5. Roller

Solution:

Since the beer bottle is closed, No glass will Ever fill.

The video-version of the puzzle is added below.

Solution:

The hidden cat is encircled below.

Solution:

39.