Should we always tell the truth?

No. If we always told the truth, it would be too hard to find a mate. The world's population would severely shrink.

Yes, seasoned with sugar, but we must used caution and discernment when "Speaking The Truth".  Many items 😉 don't need to be spoken, even if their the "Truth" as we perceive them.

Not if the truth causes another person unnecessary pain. It's a case by case basis.

It's really hard to say. I sometimes don't tell the truth because I don't want people to know how I'm truly feeling.

Not if I can get a laugh by telling a fib.

No.  It depends on the situation.  You should tell the truth whenever you can, but sometimes it's all right to tweak the truth a little bit.  Like when you someone's gone to so much trouble to get you a gift, and they're really excited for it, but you don't like it as much as they thought that you would, I think it's all right to say that you love it if you don't want to hurt their feelings.  Or if someone's made plans and they're expecting you to go, but you really don't want to go, there's nothing wrong with saying that 'I would love to, but I can't because I have a very important appointment that I can't change'.

Of course, you should tell the truth whenever you can, like if you did something, or if you know something because it just makes it easier for everyone.

If someone asks you something, you should be as truthful as possible, without be hurtful. Other times you should just keep your mouth shut. For example I have an aunt who wears ugly shoes. She came into the store where I was working and bought new shoes. When she showed me the shoes, my response was they were great color and suited her. I was truthful without telling her the shoes were hideous.

Yes, but there are creative ways of telling it.

There are also ways of avoiding telling anything, hence you are not lying, this is important in circumstances which may cause unnecessary harm.

Yes

But I was lieing

No

Example: Dose the dress make me look fat :

Answer : No your fat makes you look fat ...,

Or ... No honey you look nice ..

You choose ...