Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Which city is three-fifths chick two third cat and 50% goat?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

What breaks yet never falls, and what falls yet never breaks?

Can you count the number of triangles in the given figure?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Can you count the number of squares in the given picture?

What does below rebus means ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.