Is it possible that seller's agent is lying about receiving multiple offers??

[Marc Shin]

New investor here.   

I made an offer on a duplex, it's been on market for about 10 days. The price is low, about $160K. I offered $140K, and now i'm being told that there's multiple offers on the property.

My gut is telling me that the seller's agent is lying, about whether there are actually multiple offers. Is it possible for seller agents to lie about receiving multiple offers?