What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

What came first, the chicken or the egg?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

How could a baby fall out of a twenty-story building onto the ground and live?

Count the number of triangles in the picture below:

What is the largest number you can write with just 3 digits?

Which wheel of car does not rotate when you turn your car right?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Count the squares in the matchstick puzzle below?

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?