Here are these AI-powered websites that will greatly help you accomplish your tasks 
Upscale Media:
Upgrades the quality of any image for free
Water Mark Remover:
Removes watermarks from images in seconds
Palette Fm:
Helps you colorize old or black and white photos
Beautiful AI:
Helps you create a professional presentation
Synthesia:
Very powerful for creating a video with a character reading your text
