Autolycus instructed Heracles in this activity, which Cyrene was performing when Apollo abducted her to North Africa. In the Iliad, Achilles calls off a competition between Ajax and Odysseus in this activity and gives them both identical prizes. The king of Eleusis, Cercyon, won notoriety in this activity. A man famous for skill in this activity carried a (*) calf on his shoulders every day and built strength as it grew. A demigod built a temple 
Autolycus instructed Heracles in this activity, which Cyrene was performing when Apollo abducted her to North Africa. In the Iliad, Achilles calls off a competition between Ajax and Odysseus in this activity and gives them both identical prizes. The king of Eleusis, Cercyon, won notoriety in this activity. A man famous for skill in this activity carried a (*) calf on his shoulders every day and built strength as it grew. A demigod built a temple to Poseidon with the skulls of victims he defeated at this activity, in which he was invincible as long as he touched the ground. To discover how to return home to Sparta, Menelaus had to overcome Proteus in this activity. For 10 points, name this activity in which Heracles killed Antaeus by grappling him in a bearhug.
Autolycus instructed Heracles in this activity, which Cyrene was performing when Apollo abducted her to North Africa.
wrestling [or wrestling a lion until "in this activity" is read]