Riddle: I travel the world yet never leave the ground, whisper…

Riddle

i-exist-in-many-forms-yet-im-often-unseen-i-can-be-a

Riddle

i-have-keys-but-open-no-doors-i-transform-sound-but-am

Riddle

i-am-a-digital-fruit-a-core-at-my-heart-i-can-send-you

Riddle

i-have-keys-that-open-no-locks-i-have-space-but-no-room-you-can-enter-but-not-go

Riddle

i-have-keys-that-open-no-locks-with-a-space-that-cant-be-filled-what-am-i