Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

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 ?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Can you count the number of squares in the given picture?

What is the end of everything?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

There is something which is always coming but never arrives?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Forwards I am heavy, backward I am not. What am I?

Decode this picture on T-Shirt and tell what it says ?