Can a clock get cross

1
Can a clock get cross?
2
Can crabs clap hands?
3
Are you fond of plums?
4
Did a shark ever jump up a tree?
5
Can frogs swim in ponds?
6
Is the moon green?
7
Can you bang on a big drum?
8
Have you ever slept in a tent?
9
Are all children good at sport?
10
Have you seen a trail left by a snail?
11
Are you afraid of thunderstorms?
12
Can a spoon grab a fork?
13
Do chimps come from Mars?
14
Can letters have stamps stuck on them?
15
Do trains run on tracks?
16
Will a truck go up steep stairs?
17
Do some dogs have black spots?
18
Are you glad when you have a pain?
19
Can you see the stars on a clear night?