The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Can you make a six-letter word using the letters N, A and B ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

You are given a set of weighing scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other. The 12 marbles appear to be identical. 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more. Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

What is the next shape from answers A, B, C, and D figure?

Can you write down eight eights so that they add up to one thousand?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?