Well it depends what kind advice they need
Macbeth might advise Othello to be wary of ambition and its consequences, drawing from his own experience of the destructive nature of unchecked ambition. Othello could caution Macbeth about the dangers of jealousy and trusting the wrong people, given how his own jealousy led to tragic outcomes.
The advice that overwhelmed Othello was to kill Desdemona and he will take care of Cassio
He points out that Desdemona deceived her father in eloping with Othello, and so is capable of deceiving Othello too.
When Othello is overcome with grief after hearing rumours of his wife, Desdemona, committing adultery, Iago tells him to seek revenge. Othello is convinced that she has hurt his honour and his good name therefore following Iago's advice. Othello suggests poisoning her so he would not soil her beauty (as Othello is battling with himself because he still loves Desdemona) but Iago suggests a far more ironic way of murder. To smother her in the bedsheets in which she committed the offence.
"Hear his speech but say thou nought."
That she would give up her child if it is need
Brabantio warns Othello that if his daughter, Desdemona, deceived him in order to marry Othello, then she can just as easily deceive Othello.
good advice
He says that Othello placed Cassio as his lieutenant instead of him.
He says that Othello placed Cassio as his lieutenant instead of him.
I can not answer this question. In order for me to give you advice i would have to know what your are struggling with.
The NHTSA would give advice about vehicle safety and how the law applies in this field. They offer advice on traffic law enforcement, drivers licensing and other such fields.
Advice has no singular form; the closest is a 'piece of advice'. Proper usages include: give advice give some advice give a piece of advice