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

What is it?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

what one word does the below rebus identifies?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

I have no life, but I can die. What am I?

What is full of holes but still holds water?

Before Mount Everest was discovered, what was the highest mountain in the world?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744