Dress & Attire

Two length haircut

Q: There is a hadith where Prophet Muhammad (sallallahu alaihi wasallam) prohibited qaza haircut, so my question is I do haircut by making hair shorter at sides and longer on the top. I don't do too much short but keep less hair on the sides and longer on the top. Does it come under qaza and prohibited for me?

Wearing a "tikka"

Q: Is it permissible to wear a tikka in Islam? It’s a piece of head/hair jewellery. 

Can we wear it as it isn’t the actual bindi which is the dot on the forehead and is used in Asian cultures for adornment among Muslims as well as non Muslims?