Numbers play Quiz

In a line of five children of different heights, can all five say '1' based on the number of taller neighbours beside them?

• Yes, always

• No, never

• Yes, but only if heights are same

• Yes, only if they are in increasing order

Which number is a supercell in the sequence: 6828, 670, 9435, 3780, 3708, 7308, 8000, 5583, 52?

• 9435

• 670

• 3708

• 5583

Which of the following numbers has a digit sum of 14?

• 68

• 176

• 545

• All of the above

Which of the following is a 3-digit palindrome made from digits 1, 2, and 3?

• 132

• 212

• 123

• 321

Starting with the number 47, what is the first palindrome formed by the reverse-and-add method?

• 94

• 121

• 141

• 131

What is the magic number reached by repeatedly rearranging and subtracting 4-digit numbers with at least 2 different digits?

• 1234

• 9999

• 6174

• 1111

If three sections of Class 6 have 32, 29, and 35 students, approximately how many students are there in total?

• 90

• 100

• 120

• 150

Which of the following is a palindromic time on a 12-hour clock?

• 4:45

• 10:01

• 9:59

• 5:50

Complete the pattern: 9996, 9997, ____, 9999, 10,000

• 9995

• 9998

• 10,001

• 9994

What is the next number in the Collatz sequence starting with 25?

• 12

• 75

• 76

• 26