Then there were two sardars, Zail singh & Jarnail singh.

Both of them bought a horse each.

"How will we know which

is your & which is mine?" asked Zail.

"Easy"replied Jarnail.

"I'll cut mine's tail,yours will be the one with tail"

This was heard by a few boys ,they cut the other's tail too.

Next morning the confusion continued.

"Don't worry "retorted Jarnail.

"I'll tie a bell around its neck, yours will be the one without

  the bell."

The boys heard this also & cut the bell.

The next day, Zail got frustrated & said

"Okay now the last criterion,

white will be yours & black will be mine."