Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

If six children and two dogs were under an umbrella, how come none of them got wet?

What does this mathematical rebus means ?

Find the value of "a" by solving the maths equation in the picture below:

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

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?