Which tank will fill first?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

How many Watermelons are there in the below picture?

What kind of storm is always in a rush?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

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?

I can write cow in 13 letters.

Can You?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.