Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Take away the whole and some still remain. What is it?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

who is silent in the parliament?

What is the next number in the series?

15 29 56 108 208 ?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?