This is a very tricky and interesting interview puzzle that was asked in google interview. There are 25 horses and you need to find the fastest 3 horses. Few conditions - 1. You have 5 tracks and you need to find the fastest horses using these 5 tracks. 2. You can run only 5 horses at a time. 3. You cannot use any timer and clock. Lets see if you can find the fastest 3 horses. This Type of Questions are also asked in IAS and IPS exams.