Can you write down eight eights so that they add up to one thousand?

What number should come in place of the question mark below?

Different lights make me strange by changing me into different sizes. What am I?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

What do you call a fish without an eye?

In the four images below, can you find the odd one out?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

What is the word or phrase?