In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

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

How can you write nineteen in a manner that if we take out one, it becomes twenty?

The cream is heavier than Milk. True or False?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

What kind of tree can you carry in your hand?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What do you get if you add 2 to 100 four times?