Yoya,
See what you're looking for, 3 different types of past questions, use the link to check each.:
1. http://www.naijahotjobs.com/index.php?topic=223.0
2. http://www.naijahotjobs.com/index.php?topic=228.0
3. http://www.naijahotjobs.com/index.php?topic=227.0
let me know if that was helpful.