Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Through your logical capabilities, can you make 7 an even?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What do you see in the image below

What seven-letter word has hundreds of letters in it?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?