How can one talk without saying a single word?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

When we see 2 but call 10?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?