Problem:
Read the following paragraph and determine if the hypothesis is true:

Stryper is an American Christian metal band from Orange County, California. The group's lineup consists of Michael Sweet (lead vocals, guitar), Oz Fox (guitar), Tim Gaines (bass guitar), and Robert Sweet (drums). In 2004, Gaines left the band and was replaced by Tracy Ferrie (bass guitar) but rejoined in 2009, only to be fired after tension between the band, Gaines and his new wife.
Hypothesis: Stryper was one of the leading Christian singers in 2004.
****
Answer:
It's impossible to say

Problem:
Read the following paragraph and determine if the hypothesis is true:

Corydalis (Greek "korydalis" "crested lark") is a genus of about 470 species of annual and perennial herbaceous plants in the Papaveraceae family, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. They are most diverse in China and the Himalayas, with at least 357 species in China.
Hypothesis: Corydalis can survive in African country.
****
Answer:
Yes

Problem:
Read the following paragraph and determine if the hypothesis is true:

Tall Timber Short Lines was a magazine dedicated to logging railroads and short line railroads, and was published by Oso Publications. The magazine is read both by model railroaders and those into logging history and modeling. The magazine ended publication in August 2008.
Hypothesis: The magazine ended publication during a difficult financial period for railroads.
****
Answer:
It's impossible to say