Kill the suiters
His request was to not to tell any one that he is odysseus.
To find his dad, Odysseus.
Menelaus tells Telemachus that he is dead under Poseidon's sea.
hide all the wooers' weapons
Odysseus tells Telemachus to hid the weapons so that the suitors can't use them. Telemachus has to say that the weapons are getting "smoke damaged" and he is afraid that the suitors will start hurting themselves with them if they have too much to drink.
Because he has a journey to complete