Easy Puzzles 

Workings

Hint
The hidden country spans two words.

Answer
Panama.

Aliens landed in downtown Chicago last night. Most locals stepped outside to see the spaceship's massive wingspan. Amazingly, seven people failed to see the sight before them, as they took shelter from the bright light that shone from above.

Workings

Hint
The country has four letters.

Answer
Peru.

The local habitat around a railway track can be very interesting. For example, supporting the track is a sleeper, under which you can find the lesser-spotted great weevil.

Workings

Hint
The gap between the two options is 2 hours.

Answer
The distance must have been sixty miles.

If Sir Edwyn left at noon and rode 15 miles an hour, he would arrive at four o'clock – an hour too soon. If he rode 10 miles an hour, he would arrive at six o'clock – an hour too late. But if he went at 12 miles an hour, he would reach the castle of the wicked baron exactly at five o'clock – the time appointed.

The text above is the answer given in the book, and below is a method of finding the answer.

If we call the distance to the castle, D and use the fact that Time = Distance ÷ Speed, we have:

Travelling at 15 mph:

   Time1 = D ÷ 15           (an hour too soon)

Travelling at 10 mph:

   Time2 = D ÷ 10           (an hour too late)

The time gap between these two times is 2 hours, therefore

   Time2 - Time1 = 2

   D ÷ 10 - D ÷ 15 = 2

Multiply throughout by 30:

   3D - 2D = 60

   D = 60 miles.

Workings

Hint
Try to rotate them around in your head, but watch out for mirror images.

Answer
A and C.