#2This may not be a number. Think of a situation in everydaylife where these numbers appear.1 3 52 4 ?

Problem
For this case we have the following sequence given
1. 3. 5
2 4 ?
And for this case since we can see that the sequence is increasing by 1 unit we can conclude that the value that we are looking for is 6.
Answer
? = 6