Answer:
I am a ship that can be made to ride the greatest waves. I am not built by objects, but built by minds. What am I?
What happens once in June twice in August and never in May?
When you take away the whole from me, there is always some left. What am I?
You use a knife to slice my head and weep beside me when I am dead.
I am a red drum which sounds without being touched, and grows silent, when touched. What am I?
What can you lose that will cause other people to lose theirs too?