What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What has many teeth, but cannot bite?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

What brings you down but never up?

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?

What do you call a fish without an eye?

What does below pictogram mean?

What does this rebus mean?

O
N
C
E
TIME

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Buy me, smell me or deliver me, I do not change.

Who am I?