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

What is it?

What is the coolest letter in the alphabet?

I make two people out of one. What am I?

What goes through cities and fields, but never moves?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

Can you start the fire using two pieces of wood?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

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

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C