Lake Nyos is a crater lake in the Northwest Region of Cameroon, located about 315 km northwest of Yaounde. Nyos is a deep lake high on the flank of an inactive volcano in the Oku volcanic plain along the Cameroon line of volcanic activity. A volcanic dam impounds the lake waters.
Lake Nyos is connected to the ocean
A: No

Live at Austin City Limits Festival by Northern Irish singer-songwriter Van Morrison is a limited edition live album recorded from the Austin City Limits Festival concert at which he was the first night headliner on September 15, 2006. It has only been made available at live Van Morrison concerts and at the Van Morrison Official website.
Live at Austin City Limits Festival is based on a concert that took place 15 days after the 31st of August 2006.
A: Yes

Dan Deacon (born August 28, 1981) is an American composer and electronic musician based in Baltimore, Maryland. Since 2003, Deacon has released eight albums under several different labels. Deacon is renowned for his live shows, where large-scale audience participation and interaction is often a major element of the performance. Godson of Paul J Fowler.
Dan Deacon is a tiny man
A:
It's impossible to say