Chinese Folk Religion.
You should be able to see statues of both Tua Ya Pek and Li Ya Pek
in almost all Toaist temples. But you can also find two very nice
Tua Ya Pek and Li Ya Pek in the first temple building in Siong Lim
Monastery in Toa Payoh. I believe this temple building houses the
most Toaist statues of Dieties including some Buddhist ones as well
in Singapore.
Their birthdays are as follows:
Lunar 7th month 12th -
Tua Ya Pek
Lunar 7th month 22th -
Dua Li Ya Pek
You can also check out
birthdays of other dieties here
-mastercai.fr.yuku.com/reply/840/Birthdays-of-Taoist-Lofty-Deities