Critical Thinking Puzzles

There are four people in an adventure race that need to get across a lake. They have a small canoe. The rules say that only the slowest pers...

It takes two gardeners 8 days to mow a lawn. One is lazy and one is energetic. The energetic one would only take 12 days to mow it on his ow...

You have 5 jars of pills. Each pill weighs 10 gram, except for contaminated pills contained in one jar, where each pill weighs 9 gm. Given a...

One of Mr. Bajaj, his wife, their son and Mr. Bajaj's mother is an Engineer and another is a Doctor. · If the Doctor is a male, then the...

what is number in this series 1,16,36,__,81,100,144 a)64 b)61 c)49 d)144 please explain the logic...

Cathy has six pairs of black gloves and six pairs of brown gloves in her drawer. In complete darkness, how many gloves must she take from th...

Why is it better to have round manhole covers than square ones?