In my country students usually start learning English at the age of 7 (or even 6 currently) and many upper secondary schools offer French and Spanish. In some schools Latin is taught in addition. 

Recently I spent 16 days in a hostel in Osaka and I would prefer it over a hotel anytime. Depending on the room and on which website you book, the price is up to 5-7 times cheaper as a hotel. Very recommended.

Sure. But I think it depends on what type of learner you are. As for me I prefer studying with textbooks by my own. If you are learning a new language from scratch I don't see a reason to be depending on a teacher. Also it's way less expensive. For example I once bought a textbook for about 40€ that led me to level B1. If you spend 40€ on a teacher (that's maybe about 3 lessons) it's impossible to reach this level in such a short time. Also you can learn at your own pace, but the disadvantage is that you need to motivate yourself. If you are able to get motivated for studying by yourself it's definitely possible to learn several languages.

I don't really like it. Halloween originated from an ancient custom and more or less degenerated to a commercial event. Also I consider it as quite rude if someone rings at my doorbell and wants me to hand out sweets.

A literal translation would be: Every year that comes and goes, merges to another without a break, with every birthday, every year, we celebrate you, that's for sure.

Griaß di, Kaori! -> Hei = Heu (getrocknetes Gras) -> Has = heiß -> Ein See heißt Chiem(see), und der andere heißt Sims(see). (Der Chiemsee und Simssee sind zwei Seen in Bayern) -> heute habe ich frei ✓ -> zwider = zu wider (zB: Etwas ist mir zu wider) -> der Mai ✓ -> Bladl = das Blatt -> Madl = das Mädchen -> "Mo" kenne ich leider auch nicht... -> Jetzt wissen wir es genau ✓ Ja, Bub, Bua, Bube haben die gleiche Bedeutung! Das wäre jedenfalls meine Interpretation von oben genannten Ausdrücken!