I'll take a stab at the basic JW answers on these if you want. (puts on cult hat)
Why are we not allowed to have beards?
Well you can have beards if you like. After all, Jesus has a beard and hair grows on mens faces. However, because we are a "spectacle to the world", and many are still stumbled by this appearance or believe it represents a person of suspicious motive......we really encourage all to put on the new personality, and not allow themselves to put personal taste above what may be a stumbling block for those in the ministry. even then if someone insists on having a beard, they can, but cannot enjoy special privileges in the congregation. Who would want to miss out on that!
Why no tattoos is mosaic law is over?
(see beards......add tatoos making declaration of "ownership" of your body, and willingly gave ourselves to Jehovah in baptism)
If
god is love, why does he allow so much suffering? From what I remember
their main answer was that it started in Eden when Satan challenged Gods
right to rule. However, I refuse to believe that a God of Love would
let billions thru history suffer and die just to prove a point!
Time is but a blink in jehovahs eyes, and all of this will be righted with these ones getting a do not pass go, do not have to go through Armageddon card in order to see the new world.
Why no birthdays? (their explanations are super shaky)
Only 2 mentions of birthdays in the bible blah blah blah. But also they claim it is self glorification, pagan tradition (candles etc...), and that the first century Christians purposely avoided it (spurious claim).
Of course the bible has nothing good to say about dogs or indoor plumbing.....but those seem to be ok.
Is earth is 6k years old, whats up with Dinosaurs? Cavemen?
JW's do not believe the earth is 6K years old. They believe man is roughly that old.
I had many more, these are just some that come to mind.