How many words can a pen with half refill write?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

what does this picture(rebus) riddle means ?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

How many triangles are there on the puzzle below?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

If 1+9+8=1, what is 2+8+9?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

Why is 6 afraid of 7?