In how many distinct ways can the product `xy^2z^2` be written without using exponents?

In how many lines two distinct planes can intersect?

In how many points two distinct lines can intersect?

In how many points two distinct planes can intersect?

In how many ways can the letters of the word ALGEBRA be arranged without changing the relative order of the vowels and consonants?

In how many ways can 6 persons stand in a queue?

In how many ways can 6 persons stand in a queue?

In how many ways can 6 persons stand in a queue?

In how many ways can 6 persons stand in a queue?

In how many ways can 8 boys be seated at a round table?

In how many different ways can the latters in the wor ''LEVEL'' be arranged?