I am a prime number.
The double of myself is equal to the square of me.

which number am I?

If 21x = 79x, what is the value of x?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

What month of the year has 28 days?

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

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

2, 3, 5, 9, 17, _ What is the next number in the sequence?