What goes up but never comes down?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

I’m tall when I’m young, and I’m short when I’m old. What am I?

If 1+9+8=1, what is 2+8+9?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Find the Goldfish below the given Image.