If all religions did Elijah's challenge, do you think God will answer?

For all who dont know, Elijah's challenge is when Elijah challenged the Baal worshippers in the Old Testament. Both called on their God to rain down fire from heaven. Elijah won because God answered. I know we shouldnt put God to a foolish test, but If we were for real and sincere, do you think He would answer? I wont ask who you think will win, of course everyone thinks their way is the real way.