When is the top of a mountain similar to a savings account?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

Can you place three balls such that the equation shown in the picture holds true?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Replace the question mark with the correct number.

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.