What goes up but never comes down?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

Why do we preferably have round manhole covers and not square ones?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What is the next number in this matchsticks series riddle?