If you're not familiar with rebus puzzles, then this quick introduction will explain all you need to know. They are essentially little pictures, often made with letters and words, which cryptically represent a word, phrase, or saying.
The aim of The Rebus Show ($1.99) is to guess words represented by pictures. In the simple example above, CAT + BURGLAR = CAT BURGLAR (don't worry, they're not all as easy as that!). If you do get stuck, touching an image will reveal a hint—but you'll lose some points.
This is not the only iPad rebus app available (see here, for example), but I really liked the old style Vaudevillian era atmosphere with animated velvety curtains, antique Underwood typewriter keys, and vintage sound effects.
Teachers could use this app for a classroom quiz by connecting their iPad to a video projector or big-screen TV.
• Review—The Rebus Show for iPad (iPad Insight)
• Say What You See: This Rebus Puzzle App Looks Like Fun [Review] (Cult of Mac)