here comes situation.u play cash game 6 table max 0.10/0.20 with 40 max buy in and see what happens.1 guy pushes all in (about 10 $) and he has been called by one or two another(just called not raised!) and you have medium holding.what do you do?
well i ll give 2 the real situations what happened there:
1)stacks.i had 40$ two callers about 40$ too.that shortstack 8$.blinds 0.10/0.20
one guy put a minimum raise(o.40),i called with A10o and the shortstack reraised all in for 8$(he seemed to be a bit crazy,but i didnt think that he could push all in in that situation with marginal hand),so two other guys just called.i decided to fold there,cause thought that my A10 is no good there and my A maybe counterfeited with overpair.and see what happened flop 1088 -2 guys that called check.turn 9.again everybody check.river 10 and showdown-2 guys mucks their hands and shorstack wins the hand with Q9o!!!i was a bit frustrated there.maybe it was worth a call with A10o?
2)stacks.i had 40$.caller about 30$.all in pusher 18$.
at another table one guy,whose by being on tilt abd pushing all in with short stack enlarged his stack from 3$ to 18$.and suddenly he pushes all in preflop.one guy just calls and i had 88.well i put this all in to be a strong hand-why he needed now to risk?and he seemed to be not on tilt now.as a result i folded.here it comes board cards 4 4 9 10 2.all in pusher shows 33 and his caller AJo.
i thought wtf is going on?maybe 88 really wothed to call there?

so these 2 situations really frustrated me,because of big pot that i might have won.and here comes another question.which hands do u suggest to call in similar situations?

Both of these hands are easy folds.

AT sucks. Really, it does. I might not even call the raise to .40, never mind the overbet re-raise. If these guys are playing hands that badly, you'll find a much better hand than AT to take their stacks.

In the second hand, at best you're a slight favorite over most holdings and you have nothing invested. Again, wait for a better spot.

Standard folds. I suggest reading one of the books out there to get some idea of the values attached to differant types of hands as it seems you are not understanding some of the fundamentals. I would suggest Skalnsky's book on NL holdem as a start.