In the sequence 5, 10, 20, 40, what is the next number?

C. 80

Four friends, John, Mike, Sarah, and Emma, have different heights. John is taller than Mike but shorter than Sarah. Emma is shorter than Sarah but taller than Mike. Who is the tallest?

C. SARAH

In the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, how many times does the number 5 occur?

A. 1

Bird is to Nest as Bee is to ?

B. HIVE

In a code, '?' means addition, '?' means subtraction, '×' means multiplication, and '÷' means division. What is the result of 9 ? 3 × 2 ? 4 ÷ 2?

B. 22