Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

The more of this there is, the less you see. What is it?

A man dies of old age on his 25 birthday. How is this possible?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Find the next number in the series below

21 32 54 87 131 ?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?