Can you find the odd number in the following?

2716, 4135, 5321 and 7145

What number divided by 4 is the same as that number minus 4?

You can see it everyday, But cannot touch it at will. What is it?

What Does this text mean:

important=important

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

A devotee visits 9 temples when he visits India. All these nine temples have one thing in common - there are 100 steps in every temple. The devotee puts the Re.1 coin after climbing up every step. He does the same while climbing down every step. At each temple, the devotee offers half of his money from his pocket to god. In this way, his pocket becomes empty after he visits the 9th temple.

Can you calculate the total amount he had initially?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

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

which number am I?