Is clerk of Supreme Court of Canada safe profession for someone with seismophobia?
Seismophobia is the extreme fear of earthquakes. The Supreme Court of Canada is located in Ottawa. The Ottawa-Gattineau region is located far from active tectonic plates.
The answer is yes.

Paleography hypothetically helps to understand Cthulhu?
Palaeography involves the study of ancient writings. Paleography has helped decode Anatolian hieroglyphics from all the way back as the first millenia BC. Author H.P. Lovecraft's Cthulhu is an ancient mystical being from eons ago.
The answer is yes.

Was Surfing popular when pogs came out?
Pogs came out in the 1990's. The 90's saw a rise in 'Big Wave Culture', a practice involving finding the largest possible waves to surf on.
The answer is yes.

Are rainbows devoid of color made by mixing yin and yang colors?

Yin and Yang are a philosophical Chinese concept represented by the color black and white. Black and white when mixed together create the color gray. The rainbow contains the colors: red, orange, yellow, green, blue, indigo and violet.
The answer is yes.