What is the airech of a male between ages 1 month and 5 years?
Halachah 3: Between 31 days and completion of the fifth year, a male's airech is five silver shekalim; a female's is three shekalim.
Question 2
If a gentile says 'I pledge my own airech,' what is the ruling?
Halachah 6: A gentile cannot pledge an airech — his words are of no consequence. However, a Jew who pledges a gentile's airech must pay according to the gentile's age.
Question 3
If a person is condemned to death by a Jewish court and another pledges his airech, how much is owed?
Halachah 13: A person condemned by a Jewish court is treated as already dead. A deceased person has no airech, so no payment is owed.
Question 4
A person says 'I pledge an airech' without specifying whose. How much must he pay?
Halachah 20: An unspecified airech pledge requires payment of the smallest airech — three shekalim — since we assume the minimum obligation.
Question 5
If a person pledges his own airech and dies before standing before a court for appraisal, what do his heirs owe?
Halachah 21: Heirs are not liable if the person died before standing before the court for appraisal. The obligation becomes binding only after the appraisal.