I shave every day, but my beard stays the same. What am I?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Why is a river so rich ?