The phrase "pointless question" means a question that has no purpose or does not provide useful information. It is a question that does not have a real point or reason for being asked. Full definition
Don't spend 45 minutes answering pointless questions in an attempt to be matched with someone who is your soulmate. (hookupcloud.com)
@Chuckles «As for your evolution question, chad... give up, seriously, you're asking pointless questions that have no bearing a) on the theory itself and b) are important to answer. (religion.blogs.cnn.com)
A rip is made in the sky and soon a dragon descends with darkspawn that look like Xenomorphs and the question is produced before the viewer will you stand or will you run, which is a pretty pointless question since the entire game will be to save the entire world, so technically the choice of running is ruled out. (nonfictiongaming.com)