1. Number 12
2. Number 14
3. Number 16
when I have these numbers I mostly take a false decision, Like if I stand then see dealer won the game, again if I hit then see there is a big card and busted
Ok, let's talk a bit of a probability:
At first, it's depend how many cards do you and dealer have on your hands. More cards - worse. Less cards - better.
Number 12:
Card which fit you: anything less 10, ( and A ).
Probability to get needed card: (8 * 4 ) / 52 - n, where n - is number of card in hand of you + dealer . 8, because "2", "3", .... "9" is fitted to us. So, we have around 61-70 % of probability that you will not be
bustedNumber 14
The same, but here we have only 6 rank cards to fit (from 2 to 7) . So the probability will be around 53 % .
Number 16:
Only 4 cards ranks to fit. So the probability will be just 45 %.
Why it's good to have less cards on your hand? Easy - because this decrease probability that you will get a big card to your hand and will be busted. If you have on your hands something like 10-6 and dealer has also two cards, you can try to risk with 14-16, but if you both have 4 cards, this will be bad idea.