Answer:
What can be measured but has no length, width or height?
A prehistoric reptile that lives today and the inspiration for the name of a popular sports drink.
What is so delicate that even mentioning it breaks it?
It is where kings, queens, knights and bishops go to war together.
When is 1500 plus 20 and 1600 minus 40 the same thing?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?