Sci, how do you solve this?

>>7813876
fuck that I'm more interested in the time travel part

>>7813876
1. By 3.), Principal's office is next to the lake
2. By 1.), body is not in gym
3. By 2), since the implication is false the tree cannot be a sakura tree
4. By 4), since the first option is false the body has to be under the math room

Of course this guy's a serial killer I don't know why you think he's not lying

>>7813895
Is there a name for these kind of exercises?

And thanks a bunch anon.

>>7813918
Login exercices, logic deduction

>>7813918
There's a little flash game called ir/rational Redux that has all kinds of these. It's pretty neat, if you're willing.

>>7813876
Math room dude.
This is kids shit.