1
"by heads," meaning by the number of heads (i.e., people), or by a head count. I think the best English idiom is "per person."
Heads have a person on it. Tails have something else on it.
In a series of ten coin tosses, each toss has two possible outcomes: heads or tails. The expected number of heads can be calculated as the product of the number of tosses and the probability of getting heads in a single toss, which is 0.5. Therefore, in ten tosses, the expected number of heads is 10 × 0.5 = 5 heads. However, the actual number of heads can vary due to the randomness of each toss.
they came with "186" casting number heads.........
These should be double hump heads. They are very sought after heads.
Yes
No, you can't get HIV from sweat and bumping heads.
The person who heads or direct the orchestra\ band is called as "Conductor" or "Maestro".
Not likely.
an anbassador
the president
an anbassador