I'm not an expert at houseplant i.d. but my guess is that the first one is some type of kalanchoe. Does it get babies on the edge of the leaves? The leaves are similar to the Mexican Hat I used to have. I don't know what type of cactus the second one is but the third one is a bromeliad. Marg

Wow, that's one of the best Bromeliad flowers I've ever seen! I mean WOW!

Saleh..Wow, your Kalanchoe is so full. What's its height?

Marg is right about your cactus, however it reminds me of a cross between Euphorbia and Optunia. Although I'm certain your plant is neither.

I agree w/Purple about your Bromiliad. The flower is adorable. I've seen Brom's similiar to the flower shape on your plant but blooms grow deep within foliage, never so high up. Toni

Sorry to say that I don't know what it is, but am pretty sure that 1st plant is NOT a Kalanchoe, I don't believe it's even a succulent.

Don't know the 2nd (but think that mix is too peaty for it).

The 3rd is a very nice Bromeliad, am guessing it's either an Aechmea or a Guzmania. That flower will likely last several months.

The first plant looks a lot like my bryophllum daigremontianum (devils backbone) Does yours get small plantlets along the sides of the leaves which fall off and grow in the soil? I'm pretty sure it is part of the kalanchoe family. Just a quess, but it looks so similar to mine except for lack of plantlets on yours.