How many times can you subtract the number two from the number fifty?

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?

Which digit occurred maximum times between the number 1 and 1000?

Which five letter word can be added at the end of below word to form a
valid word?

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What have one eye but still cannot see?

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

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

What is 3/7 chicken, 2/3 cat and 2/4 goat?