Replace the question mark with the correct number below.

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

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?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?