Shabbat

Hi, Am I allowed to use this mug on Shabbat? It turns from black to a picture when you put hot water in it.

Can one strain cold brew coffee on Shabbat for consumption on Shabbat?

Can one zest a lemon on one's food on Shabbat?

Are kids allowed to play with stickers on shabbat?

Are we allowed to use scooters and/or bicycles on Shabbat?

Hi! I was wondering if I can use this certain make up product on yom tov/shabbat- it’s a liquidy product, it’s kind of like this sort of liquidy thing that u rub in like a moisturizer and it makes you more tan. I was wondering if I can use it since a lot of people use lip gloss since it has a runny consistency. Thank you!

We have 2 non-jewish neighbors that have automatic lights on their driveway. We try to go as far off the street as possible but still end up activating the lights on our way home from shul. Is this an averah? What should we do if so?