When en route from China to France, must pilots know their altitude in the imperial foot?
Most international airports and aviators use the foot to measure altitude. China and North Korea require pilots to use meters for altitude. Pilots must communicate their altitude with local air traffic control.
The answer is yes.

Was Gandalf present at the death of Eomer?
Eomer died in a skirmish with orcs outside Rohan at the beginning of Two Towers. Gandalf had been killed by the Balrog at the end of Fellowship of the Ring. Gandalf returns with improved powers later on in Two Towers.
The answer is no.

Is a slime mold safe from cerebral palsy?
Cerebral palsy is a disorder caused by damage to fetal or infant brains. Slime molds are simple organisms that are similar to fungi. Slime molds do not possess a brain.
The answer is yes.

Is an Eastern chipmunk likely to die before seeing two leap years?
A leap year happens every four years. The Eastern chipmunk has an average lifespan of three years.
The answer is yes.