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?
I am a busy worker who is a water mammal.
I am what one cannot keep, two cannot hold, and three cannot destroy. What am I?
I have 24 keys but cannot open any locks. Sometimes loud sometimes soft
I am the second L in LOL.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?