I've already set it up on my phone's WhatsApp and it's working very well. The first thing I checked was my blog - 9janinja.Com - and it gave me answers. Check out the process below and enjoy:
You can indeed use your WhatsApp for more interesting purposes apart from "chatting".
You can have a "wiki" contact on your WhatsApp list, where you can inquire about any information that you want, just think of it as a cooler form of dictionary, and you get answers INSTANTLY.
Save this number +91 90434 89211 as wikipedia
Create a new WhatsApp group and insert only the "wiki" contact and save.