Yes, you can wash sneakers in the washer. Delicate, cold, small amount of detergent, laces out (Dan!) and in a laundry bag or the pair entirely in a bag laundry bag.

You can wash with other sneakers but I wouldn’t wash with clothes.

Consider getting a boot/mitt/hat dryer (like the ones at Costco). Very handy for quick drying and no mold, bacteria, fungi stink. I use mine all year round for this and weather related needs.

Note that the fabric on the soles might let go over time. The glue isn’t so strong.

Yes, right beside the “Turbo” button that you’d never turn off (I mean, why would you).

Some of those were cylinder keyboard locks, like the old bike locks that were vulnerable to the Bic pen trick.