My answer was 12 to each question and I'm right.

Question 1, 4 and 5 is all about concentration
Question 2 is about thinking outside of the box, but
a) there is even an answer with 3 lines and
b) it's so old and common knowledge I guess almost everyone has come across it.
Question 3 is about the phrasing and a little bit harder if your mothers tongue isn't english.

Kind of a shitty compilation, if you mix so many different styles of trick questions, especially such old ones.

OK...So I'm 'officially' a GENIUS ( even if i did spell officially wrong...the first time )...right...where's my certificate?

my friend's sister makes 90 an hour from home. she has been fired from a job for twelve months... the previous month her income was 21490 working on the internet for 3 hours each day.. look at
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¯\_(?)_/¯????? www.7lifemoney.com

#4 My friend's brother-in-law makes more than that offline. He's been laid off for 4 months and last month his profit was 20505.01 only working from home for 4 hours a day. How? Doing your mum.

So the first question was dead obvious in their intent, but it shows an abysmal failure of language comprehension on the part of the would-be quiz master.

In English, and probably most other languages, economy of words is very important. As a consequence, most statements include implicit meanings, which every fluent speaker understands, This is no different when saying things of the form "X contains Y widgets". If we mean Y or more widgets, we say "at least Y". If we mean as many as Y but no more, we say "no more than Y" or "as many as Y". If we provide no qualifications, we implicitly mean both - "X contains Y widgets" is identical in meaning to "X contains no less and no more than Y widgets".

A more concrete example is describing the number of legs an animal has. A two-legged animal does not have at least two legs. It has exactly two legs - no less, no more. A month with 28 days does not have at least 28 days, but only 28 days - no less, no more.

So the correct answer to the first question (oddly numbered #4, as if the list were a countdown) is 1 or 0 - February during normal years, and no month during leap years.