Proverbs 25 - Years after Solomon's death, men of Hezekiah's days were led by the Spirit of God to bring together more proverbs they knew were penned by Solomon. Chapters 25-29 are the collection of these. There are numerous warnings and instructions which a wise man or woman would desire to follow. You will find many of these instructions come in paragraph form and it's great to have a Bible which makes that clear. A couple examples are, first, verses 6-7 where the instruction of Jesus about not sitting in the best seat but let the host offer you a better seat (Luke 14:8-10) is given as a caution not to exalt yourself. Second, verses 11,12 speak about choosing appropriate words to say that will bless the hearer and give satisfaction to your own heart.
Proverbs 26 - A notable caution is given in verses 4 and 5 where an apparent contradiction is presented. What you're cautioned not to do in verse 4 you are encouraged to do in verse 5. A thoughtful meditation on these two verses will show you that there truly are times when "answering a fool according to his folly" is absurd and best not to be done. But then there are times when giving the fool the same response as his folly will possible show him how foolish he sounds. Verses 20-22 emphasizes the caution against gossip. How many painful arguments are caused because someone chose to share a "tasty morsel of gossip" that hurt another person deeply.
Read these Proverbs with a prayer desire to learn the lessons being taught.