Today while getting ready:
Son: “Daddy, boys are better than girls aren’t they?”
Me: “Why’s that?”
Son: “Because we are faster! Girls take so long to do things with their hair and choose what to wear and I just go zzmm zzmm zzmm <excited hand movements indicating getting dressed>”
As they get older they get more manipulative.
Me: Can you get me my phone from the bedroom please, its on the nightstand
Son: Can I stay up an extra hour?
Me: No, you have school in the morning
Son: OK, good night then
Me: “OK, but we need to go now.”
Son: “Why?”
Me: “I’m very tired.”
Son: “You need to drink some coffee.”
When we were out and about, we used to drive past the ‘Broccoli House’
( Broken Haus !!! )
Cheeky…but clever! 
I like him. 
I hope you don’t take it the wrong way, but personally I grew fond of our kids challenging our bs…it can be uhm, transformative. 
I always do:
Son: Can I stay up an extra hour?
Me: Bring me the phone and then ask.
Me: Bye, “Daughter”!
Daughter: Where are you going, daddy?
Me: To study, Swiss German course.
Daughter: Hmm… I wish you… not to die.
She’s 5 and she knows Swiss German better than me, should I be worried? 
Nah, not really… 