Answer:
What word has kst in the middle, in the beginning, and at the end?
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
I have more shoes than anybody but less feet than everyone. I am met in the morning but departed in the night. I may shake as if I'm angry but I won't bite.
I have feet on my head
The more of me there is the less you see.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.