No — the Rebirth sleeve holds a rules leaflet and a punchboard serving as the Rebirth clock, so nothing is missing. It contains modules that raise difficulty, not tests.
No — signals such as card angle, blinking or counting seconds are forbidden. Talking about colours, general strategy and how quickly someone should play is fine, and agreeing in advance what a particular kind of play means is allowed.
Yes — the hand is positioned in preparation but may be moved before the finished clock is evaluated, per the Chapter 3 rules sheet. The cardboard hand only marks your plan until then.
On any segment, unless the clock or mission forbids it, as long as the group has placed fewer faceup cards than the eye symbols on the Reminder token. Each player decides per card, and the decision can't be discussed during placement.
The limit is per test, not per chapter. It starts at the number of eyes on the Reminder token, and each failed attempt flips a Bonus token, adding one faceup card on later attempts (up to three, including at 2 players). Tokens flip back once you pass.
It means the card goes in that very segment, not into the two neighbouring segments. The French wording is closer to 'in front of', and the English phrasing misled some players.
A segment passes if no other segment is closer to the printed target. A segment equal to the target always passes, and segments equally far on opposite sides of the target don't conflict.
No — those symbol rules are met by what you play during the placement phase (for example, putting the highest or lowest cards there). Nothing is moved during resolution.