It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?