The more of this there is, the less you see. What is it?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

What has to be broken before you can use it?

The answer I give is yes, but what I mean is no. What was the question?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.