With simple branching you cannot set up logic based on responses to multiple questions. Also with Simple Branching the logic is executed immediately.
Compound Branching: With help of Compound Logic you can set up branching based on responses to multiple questions in the Survey.
Delayed Branching: With Delayed Branching you can set up Branching Logic based on a Question which was asked much earlier in the Survey.
Q1: Gender
Q2: Age
Q3: General question to be answered by everybody
Q4: General question to be answered by everybody
Q5: General question to be answered by everybody
Now after Q5 respondents should branch to different questions based on their selection in Q1 AND Q2
Q6: To be answered only by respondents who selected Gender=Male and Age=18 and above
Q7: To be answered only by respondents who selected Gender=Female and Age=18 and below
Now all respondents should again answer rest of the questions.
Q8: General question for all respondents
Q9: General questions for all respondents.
Since the logic should be executed after Q5, click on the Logic icon for Q5 and go to Compound / Delayed Branching.
Step 1: Define Criteria
Step 2: Set Logic