Answer:
You do not want me when you donβt have me but when you have me you don't want to lose me.
My first is in riddle but not in little. My second is in think but not in brink. My third is in thyme but not in time. My fourth is in mother but not in brother. My last is in time but no t in climb.
I give light by night, but not by day. I am wicked but not evil in any way. Wax for the most but always wane; except when I'm out, I stay the same. What am I?
I am a king whoβs good at measuring stuff. What am I?
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
The warmer I am the fresher I am.