Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Find the next number in the sequence

5 12 24 36 ?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Which flower has two lips?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Why is the Hole below a Lock?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

81 x 9 = 801. What must you do to make the this equation true?