If a wheel has 54 spokes, how many spaces are there between the spokes?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

Which is faster, Heat or Cold ? Explain.

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Can you solve the maths in the below-given picture equation?

Can you solve the rebus below?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Find the next number in the series below.

6 18 270 72090 ?