Right, Zeus isn't a real god, because of course I can't ask him to do something extremely unlikely or such and then have it happen, against the current circumstances.
Of course you can. People ask Gods for things all the time. When they don't work out they have pre-set answers - God had something better in mind down the road or I needed to go through thing. There are many ways to account for a non-answer.
But occasionally you get something you asked for that seemed like a longshot. For one thing longshots do happen, especially if you are putting your attention on something. But if you prayed to a God first then it's going to stand way out as a "hit" or as an answered prayer.
When I was religious all amazing luck went to God power and when I wasn't nothing changed I just realized stuff sometimes works out.
Even people with a serious illness that has only 20% survival rate, if there are 1000 people with the disease this year there will be 200 people who survived. Those who prayed will conclude a miracle happened and they were saved by a supernatural agent.
Studies have been done as well on prayer and never produced positive results in terms of mortality rates and illness.
Zeus will answer your prayers at the exact same frequency as any other God if you really believed he could. That's how it works.
When you turn your attention to something things start happening. You make connections, put yourself out there. If one thinks a God is helping them they will ignore dead ends and notice when interesting coincidences happen.
I just heard a fundamentalist police officer say Jesus told him to look behind him while he was in his car looking for a man with a gun. He then saw the man.
Except when you are in a car and looking for a gunman who is on foot your head is looking everywhere. There is no doubt he looked behind him several times. The time he looked and saw the guy he convinced himself that was the time an "inner voice" was telling him. Obviously when looking for a gunman every so many seconds your brain is going to say "LOOK BEHIND YOU AGAIN!"
Then he thought that people being shot in the same spot on the chest and some dying and some living meant a supernatural agent was at work.
somehow he forgot that not all guns are fired from the same distance, angle, the person is moving different and any slight angle change will change the way the energy is dispersed. Causing sometimes a fatal shot and sometimes and near-miss.
This is all confirmation bias.