STUMPERS CCLXXXIX
Credit: Joseph Appel

1. Can you think of the names of two birds in which the last two letters of the first bird mean to allow something to happen (more or less), and the last three letters of the second bird mean to not allow something to happen?

2. Why is the IRONMAN triathlon really a woman's event?

HINT:
#1: First bird: Beatles' song and album title

Answers:

1. PHOEBE - PHOENIX

2. IRON = Fe (chemical symbol)
    MAN = MALE     
    So, IRONMAN = FeMale 

(HINT: Let It Be)