no
No it is not illegal but you need a permit
Brass Knuckles are illegal in Missouri because of there purpose and because they are classified as concealed weapons which are illegal to own without having a permit or reason to carry.
No
not for pets
yes it is
Yes, switchblades are illegal to possess in Missouri under state law. Missouri's statutes explicitly prohibit the manufacture, sale, possession, and transportation of switchblade knives.
Yes
Possession of K2 incense in Missouri is illegal.
No. Missouri has a speed limit just like everywhere else, and going over that limit (i.e. speeding) is illegal.
Importing them is illegal, but not keeping them as pets or breeding them as such. The ban on keeping them as pets was lifted in 2008.
yes