Can you count the number of quadrilaterals in the picture below?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

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?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

What does it mean?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?