Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

When it's bad luck to meet a black cat?

Can you find out the remainder when 3^300 is divided by 5?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Using Only Five 5's and any mathematical operator make sum as 37

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

Why are all black people so quick ?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10