What does below rebus means ?

Prove that the below maths equation is true.

8 + 8 = 91

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

What has a ring but no finger?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Which word does the below Plexor means ?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Count the number of lines in the image below ?