What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

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

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

What is black when you buy it, red when you use it, and gray when you throw it away?

Can you count the number of triangles in the given figure?