What are the correct answers to beat the Rakata at riddles in KOTOR 1?

L. Unfinished Business
On Korriban, next to the Dreshdae cantina, you encounter a Rodian named Lurze Kesh. He has heard about the arrival of the Ebon Hawk and inquires whether you are the pilot. If you confirm, he asks about a shipment from Davik. Davik's men were supposed to deliver a shipment of spice to Lurze, and he suspects that the spice may be on the Ebon Hawk. He requests that you search for a hidden compartment on the ship and provides you with a passcode (RED 47) to open it.
Return to the Ebon Hawk and enter the cargo hold, which contains an emergency cache of food and various containers on the floor. The hidden compartment is located towards the back of the room. Open it and deliver the spice to Lurze.
Lurze is quite pleased and rewards you with 1,000 credits. If your persuade skill is sufficiently high, you can convince him to increase the payment to 1,500 credits. Once the transaction is complete, Lurze asks if you are interested in earning additional credits. He has a simple mission: to deliver a package to a Hutt named Motta on Tatooine. If you agree to the task, Lurze will have the package loaded onto the Ebon Hawk. He also warns you not to open the box under any circumstances.
If you open the box, you will find yourself alone in a room of endless white, featureless except for a small bed surrounded by four pillars. As you approach the pillars, a Rakatan emerges from behind one of them. Speak with the Rakatan to discover that you are trapped inside a mind prison. The Rakatan was a great leader who instigated a civil war within the Rakatan empire. He was captured and sentenced to eternity inside the mind prison.
The Rakatan has found a way out of the prison, but he cannot return to his body, as it is dead. However, he can transfer his consciousness into your body. The Rakatan challenges you to a series of riddles. If you answer one incorrectly, he will seize your body. If he answers incorrectly, he will send you back to your body unharmed.
Here are the riddles and their answers:
1. Until I am measured, I am not known, yet how you miss me when I have flown. (Time)
2. I never was, yet always will be. I am never seen, yet always come. I can carry nothing, yet hold much for some. (Tomorrow)
3. Who makes it has no need of it. Who buys it has no use for it. Who uses it has no knowledge of it. (Grave)
4. I am always hungry; I must be fed. The finger I lick will soon turn red. (Flame)
After you answer all four riddles correctly, the Rakatan will fail one of your riddles, then keep his promise and return you to your body.
Go to see Motta in Anchorhead's swoop registration building. He rewards you with 2,000 credits, but you can negotiate him up to 2,500.
You can actually watch it here:
http://www.youtube.com/watch?v=jkJrlP2o3zU