How well do you know dev tools?

Ruby? Simple and expressive. DigitalOcean? Great value. New Relic? Easy setup.

Can you identify which tool people use for the following reasons?

NoSQL and Hadoop
Free
V1.10 released - https://drill.apache.org/
Lightning speed and simplicity in face of data jungle

The administration framework for Ruby on Rails applications
This is it!
Actions speak louder than page views.
This is it!
Send Money, Pay Online or Set Up a Merchant Account
This is it!
Schema-Free SQL Query Engine for Hadoop and NoSQL
This is it!