In solving captcha’s captcha fast, you need to focus on looking the images that has similarity in the given query.
For example, the given query is “Please click image conataining a motorbus”, you must observe closely the image with the exact look base on the query.
Note: if you are having a hard time figuring out the images you are looking for base on the query, then you might want to skip it. You won’t get minus points if you skip one. We understand that sometimes, the given captcha is hard to solve, so we consider it.