The following are stories and questions about them. Each story is followed by a question and answer to a given question.

Story: Yaounde, Cameroon (CNN)Cameroonian troops and their allies have freed a German man who was held for six months by Islamist terror group Boko Haram, Cameroonian President Paul Biya said. 

Boko Haram kidnapped German citizen Robert Nitsch Eberhard in Nigeria in July, Biya said in a statement read Wednesday on state-run broadcaster CRTV. He did not detail how, when or where the rescue operation took place. 

"A special operation of Cameroonian armed forces and security services of friendly countries" freed the man, he said. 

Eberhard told journalists he was glad to be alive. 

"I am happy to see all these people around me, who have rescued me and made sure that I survived, because until the last minute, I did not know whether I would survive or I would not survive. It was for me a big problem. Because it was darkness, total darkness, and you see nobody around you. Then this is a big problem to say OK, I will survive or not survive," Eberhard said. 

Eberhard was flown in from Cameroon's Far North Region to Yaounde shortly after noon Wednesday. 

He said he was grateful to all those who worked to secure his release. 

The German ambassador to Cameroon, Klaus-Ludwig Keferstein, also thanked Cameroonian authorities, particularly because "we could find a solution to this problem of hostage-taking," he said. 

Eberhard spoke amid heavy security and mentioned that he was teaching at a vocational school in Gombe, Adamawa state, Nigeria, before the insurgents took him hostage in July. 

He has been taken to the residence of the German ambassador in Yaounde. The ambassador said initial medical care will be given to him before he is flown back to Germany for more medical attention. 

Question: Who is Cameroonian President?
Answer:Paul Biya

Question: What is the name of the German citizen?
Answer:Robert Nitsch Eberhard

Question: who kidnapped him?
Answer:Boko Haram

Question: Which group is it?
Answer:Islamist terror group

Question: where was he kidnapped?
Answer:Nigeria

Question: When?
Answer:July

Question: Who saved him?
Answer:A special operation of Cameroonian armed forces

Question: Where was he teaching?
Answer:Gombe

Question: Which area?
Answer:Adamawa state, Nigeria

Question: which school?
Answer:a vocational school

Question: Where is he taken now?
Answer:Yaounde.

Question: at which house?
Answer:the German ambassador's residence

Question: What would be done before he is flown back to her home country?
Answer:initial medical care will be given to him

Question: What did he told to journalists?
Answer:he was glad to be alive.

Question: Where was the Biyas statement read broadcasted?
Answer:
CRTV