A bald-faced (or barefaced) lie is a lie told when it is obvious to all concerned that it is a lie. For example, the child with chocolate all over her face who denies having eaten the cake is a bald-faced liar. The adjective “bald-faced” indicates that no attempt has been made to hide the fact that it is a lie.
The bald-faced liar does not intend to deceive anyone because it is obvious to all concerned that he or she is lying. Thus, a bald-faced lie does not count as a lie according to the standard definition of lying. However, several philosophers have argued that a bald-faced lie really is a lie. And they have tried to give definitions of lying that do not require an intention to deceive. For example, it has been suggested that lying is asserting something that you believe to be false (regardless of whether you have an intention to deceive).
Lying by omission
Lying by omission is when an important fact is omitted, deliberately leaving another person with a misconception. This includes failures to correct pre-existing misconceptions.
A lie-to-children is an expression, or more specifically a euphemism, that describes a lie told to make an adult subject, such as sex, acceptable to children. The most common example is "The stork brought you." or hiding honesty and truth e.g. I will tell you when you are a little bit older.
A white lie would cause no discord if it were uncovered and offers some benefit to the liar or the hearer, or both. As a concept, it is largely defined by local custom and cannot be clearly separated from regular lies with any authority. As such the term may have differing meanings in different cultures. Lies which are harmless but told for no reason are generally not called white lies.
In western countries, a white lie is typically taken to mean an untruth with an alleged justification such as to avoid upsetting a person, to encourage a person or just for harmless convenience. An example of a white lie is a nurse who reassures a disfigured patient that he looks healthy, or an aged husband who assures his wife that she looks just as good as when he married her. This kind of white lie is, in many instances, known to be an untruth by all involved parties, but overlooked out of diplomatic tact or politeness. For example, when two people collide in a crowded hallway and one falls down, he might tell the other that he's not hurt, even if he's hurt a little bit.
Emergency lie is a different kind of white lie, which is employed when the truth may not be told because, for example, harm to a third party would come of it. An example of such an emergency lie would be a neighbor lying to an enraged husband about the whereabouts of his unfaithful wife, because said husband might reasonably be expected to inflict physical violence should he encounter his wife in person. Although the moral integrity of the wife may certainly be put into question, the threat of violence is considered to be the more pressing issue, which could justify the lie in this case depending on the moral axioms employed.
Jocose lies are lies which are meant in jest and are usually understood as such by all present parties. Sarcasm can be one example of this. A more elaborate example can be seen in storytelling traditions which are present in some places, where the humor comes from the storyteller's insistence that he or she is telling the absolute truth despite all evidence to the contrary (i.e. tall tale).
For this thread I would include in lies to children also the simplifying of scientific truths while omitting the existence of more complicated matters.
Lies by omission include careful speaking and generally not exactly lying but not giving all of the information.
As for myself, the cases in which I lie outright are when I wish to protect someone else's privacy or with jocose lies (never knew that word). I sometimes lie by omission as well (like if someone asks me "do you have a girlfriend?", I will simply answer "no" and not "no, I'm gay", so as to avoid a longer, more boring conversation). I am careful not to tell white lies.
Feel free to post stories of when you got into trouble for lying, or the opposite - you weaved an intricate web of lies and managed to get away with it. Those are always fun.