Ok, I might as well go first: I wish I could draw. Not at the level where I could make photorealistic portraits, but I’ve always been envious of those who are able to scetch something together in a few minutes that perfectly captures what they want to convey. Sometimes words aren’t enough to express what I want to say, and for those situations I would love to have a simple drawing do the talking for me.
French is considered just about as hard as Spanish, maybe a little harder on the phonetics. German is harder than French or Spanish. Russian is harder than German/French/Spanish, but Japanese would be significantly harder than Russian.