I am an odd number. Take away a letter and I become even. What number am I?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

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

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Can you solve the below geography rebus by decoding the below rebus ?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

Can you make four (4) nines (9) equal 100?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?