Which wheel of car does not rotate when you turn your car right?

Find the next number in the series below

21 32 54 87 131 ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In the image given, you can find several triangles. Can you count them all?

How is a fly different from a mosquito?

Find the number of squares in the below picture

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.

On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?