Instead of looking for lies (error) in the Watch Tower Publishing Corporation's work, why not first look at your own assumptions and give those weight and value or eliminate them? You will have a much higher value on your time. If you can't identify and list your assumptions, you don't understand the issue enough to look for error.
When I looked at the Watch Tower, most of the error I found was my own. My assumption there is a malevolent invisible god with ex-ray vision and divisions and plots and personalities like Thoth, Isis, and Osiris were rooted in mythology and rated a zero on the value meter. The Hebrew people admit to creating the concept of an invisible god and the Encyclopedia Britannica shows how the sacred texts were products of humans.
God is a human creation, The Bible is a human creation, I can find no rational evidence of life after death, All authority is conditional and subjective, Reality is perception. All my assumptions were myth and superstition and tradition and had no value in pragmatic decision making.
How can I look for error in a religion when my own ideas were so flawed? An interesting thing happens when I accept reality . . . . I quit caring about religious teachings. I start caring about human things, like how do people treat me and people who are important to me? How can I quit being used and start to make my time count for something real?
Thanks for the topic. Made me think.