How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

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

What is it?

What does below Rebus say?

XLR8

A father's child, a mother's child, yet no one's son.

Who am I?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

The centre of the third figure is empty. What digit should fit inside?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?