What is the next number in this matchsticks series riddle?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

If eleven plus two equals one, what does nine plus five equal?

There are 3 apples in the basket and you take away 2. How many apples do you have now?