What is so fragile that saying its name breaks it?

Which digit occurred maximum times between the number 1 and 1000?

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

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

What month of the year has 28 days?

In which direction should the missing arrow point?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

There are 3 apples in the basket and you take away 2. How many apples do you have now?