(Makeh B'patish-מכה בפטיש Ep. 38) (#916) Understanding the Concept of Creating Musical Sounds on Shabbos.

using whipped cream on Shabbos; opening a lid of a bottle that's very tight; tissue boxes;

Digital Watches on Shabbos. If Someone Left Something in Their Car on Shabbos. Using a Timer on a Hot Plate on Shabbos;

What Should One Do if They Need to Comb Their Hair for Halachic Reasons? On Rubbing One's Eyes, Nose, and Other Parts;