Decode this picture on T-Shirt and tell what it says ?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Which country gets ill every time?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

A bomb exploded in a room full of married couples and no one died. How?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?