Answer:
I am a seed with three letters in my name. Remove the last two and I still sound the same. What am I?
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
A thousand wheels but move I do not. Call me what I am call me a lot.
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
I have keys but no locks. I have space but no room. You can enter but canβt go outside. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?