Logic 'N Simple

This is a f***ing disgrace to logic tests. (Especially that juggler question.)

A mix of a few genuine logic puzzles, a good few where there are multiple right answers (including the very first one), and a bunch where, whether due to being poorly explained or just moon logic, are absolutely incomprehensible (like the juggler one). No.

that music, how do i mute it?

Flawed logic is certainly not simple. But decent try, would have been 2/5, but the lack of a mute button makes it 1/5! Can't be that hard, if game has sounds, game MUST have a mute!

Juggler makes sense. Every 4th ball is blue and gets eaten. Red ball makes him eat 5th and 6th ball, leaving 3 black balls. After 4 spins, you have 12 black balls (3x4).

As far as the first one, the arrows are your clues, it is counting space between bars and outside the bars (maybe the bars are platforms). So you will always have 1 more train than bar - 7 bars = 8 trains.