Answer:
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 am a table you can eat. What am I?
I am in the middle of water but am not an island.
I will disappear every time you say my name. What am I?
What two keys cannot open any door?
Why is the letter B always cool?