Why is Saturday stronger than Monday?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

I have Rs.50 and I spend it in the way as below.

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Solve the counting riddle by identifying the number of triangles in the given picture.

Eight of us go fourth, not back, to protect our king from an attack. What are we?

No matter how little or how much you use me, you change me every month. What am I?