Which type of metamorphosis do Lepidoptera

Find the wrong number in the following number series:

1250, 500, 200, 80, 30

If 'when' means 'x', 'she' means '+', 'will' means '+' and 'come' means, then what will the value of " 8 when 12 will 16 she 2 come 10 "?

Which two signs should be interchanged to make the given equation correct?

756 ÷ 252 + 89 × 180 – 63 = 384

Select the figure that will replace the question mark (?) in the following figure series.

What should come in place of ? in the given series based on the English alphabetical order?

MFX, JCU, GZR, DWO,?

If B < H < T and H > R > D = M > A, then which of the following conclusions is correct? 

Select the figure that will come next in the following figure series.