Can this cable charge both simultaneously?
Not simultaneously. It’s one or the other. Lightning and type-c head are adapters. They does not have its own power source.
Does it support data transfer for all 3 usb types? i have pixel2, motorola android phones and an iphone6 and need data transfer to computer for all.
Dear customer, yes, all USB types are support data transfer and charging, thank you.
Could the type-c charge a newer macbook pro if paired with appropriate charger?
We do not recommend you use this cable charging your MacBook pro because it will be take a very long time to complete the charging.
Does this come with the wall plug adapter?
Dear Customer, the item you asked is a 3 in 1 Lightning/Type C/Mirco USB cable, wall plug adapter is not include.