Question 1. Find a prime number that remains prime when 10 or 14 is added to it.
Because $2+10=12,2+14=16$, the prime number 2 does not meet the requirement;

Because $3+10=13,3+14=17$, the prime number 3 meets the requirement,

Because $5+10=15,5+14=19$, the prime number 5 does not meet the requirement;

Because $7+10=17,7+14=21$, the prime number 7 does not meet the requirement;

Because $11+10=21,11+14=25$, the prime number 11 does not meet the requirement.